List of Red vs. Blue episodes (The Chorus Trilogy)

Caboose and Wash take the tank back to Blue base, where Wash reminds Tucker that no one is to touch the tank. Wash also reminds Tucker that until they're rescued, they need to be more mindful of the resources they have and to report to him about anything. Wash then says that with Church and Carolina gone, he's responsible for holding the team together. Tucker then makes a badly timed joke about the crashed ship's entire crew dying at the time of the crash.

At Blue base, Wash has Tucker do push ups as part of physical training, which frustrates Tucker. Tucker asks why Caboose isn't doing the training like he is, with Wash answering that Caboose is having one of his "off days". Wash then has Tucker run laps around the canyon. Later, Wash finds Caboose standing in front of a mirror, depressed because Church is gone. Wash tries to comfort Caboose, but Caboose goes on a walk by himself still depressed, leaving Wash to ponder on what he's going to do with him.

Caboose is walking around the canyon, still depressed about Church being gone. He then hears a noise and goes to investigate, he sees something and says hello to it. Back at Blue base, Wash now has Tucker run an obstacle course he constructed. Soon after Tucker finishes the obstacle course, Caboose returns in a exciting mood. Wash tries to get Caboose to run the course, which Caboose completes almost immediately, saying afterward he needs to do something. Wash immediately ends training for the day and decides to work on the communications dish.

At Blue base, Wash is working on the communications dish with Tucker with him. Tucker comments that they and the others should have been founded by now, remembering that the crashed ship's GPS locator should have activated when they crash landed. Wash grows frustrated about not having all the tools needed to fix the dish, thinking the Reds took a tool. Tucker tries to calm Wash down, saying that if they were in Blood Gulch, they would be doing the same thing, though Wash believes that they are being watched by someone. Wash eventually agrees with Tucker that they should have been rescued by now. Meanwhile, Caboose is working on an unseen item get loose from something, wondering how the item got there. Caboose assures the item to not worry as they are going to be best friends.

Caboose has finally finished fixing an unseen object in a cavern. Meanwhile, Wash and Tucker are still trying to fix the communications tower. The Reds soon arrive and try to offer assistance, though Wash refuses, even turning down Lopez 2.0. Lopez 2.0 sees the problem with the dish and goes to fix it, causing the dish to finally come online. Wash sends out a mayday signal, hoping to be rescued. The mayday is eventually answered by none other than Donut, surprising everyone. Sarge has Donut write down the coordinates of where they last were, as the Reds and Blues have no idea of where they are exactly. Soon after the dish goes offline again, the Reds and Blues begin celebrating for the eventual rescue, but Wash warns them that it might take days before they're rescued and that they shouldn't get their hopes up. Caboose finally joins the others, and excitedly introduces them to "Freckles", an A.I.-controlled Mantis, which leaves everyone speechless.

At Blue Base, Caboose shows off Freckles to Tucker and Wash, who argue about why it's called a Mantis due to the similarities of the insect. Caboose tells them he found Freckles under debris and was able to free it. Soon, Wash mentions that they need to continue training until they're rescued and to be prepared for anything, despite Tucker seeing no point in it. He changes his mind when threatened by Freckles for disobeying a direct order from a commanding officer. Wash leaves for the crashed ship to do an inventory check on the Reds and Blues' food supply, but once inside the ship, he passes the food storage to do something else.

At Red Base, Grif returns and reports to Sarge that the Blues aren't planning anything, and that Simmons has decided to stay with the Blues. Sarge goes crazy upon hearing the news and believes that the Blues have betrayed them, captured Simmons, and that the Red vs. Blue war has started all over again. As he goes on about this being a conspiracy that has been in motion for years, Sarge then orders an unwilling Grif to prepare to attack the Blues.

As the Blues and Reds are caught in a standoff, Sarge accuses the Blues of kidnapping Simmons, though the Blues point out that Simmons joined them willingly. Sarge then brands Simmons a traitor and prepares to attack the Blues. At the same time, Wash and Tucker get into another argument with each other, with Wash wondering why Tucker is so resistant to his orders, and Tucker complaining that the Blues are now worse off with Wash as the leader. Wash and Tucker then make a sarcastic decision to have Caboose promoted as leader of Blues, causing Caboose to accept his "nomination" and Freckles, confused by this decision, to immediately demote Wash and promote Caboose as team leader, then warns Tucker and Wash that any attempts to disobey Caboose's orders will be punishable by death. Upon hearing this, Simmons tries to go back to the Reds, but is threatened by Freckles at gunpoint if he leaves his post. Sarge then tries to attack, but Freckles destroys his warthog. Undaunted, Sarge prepares to charge again, when they are interrupted by a pistol shot.

Both teams turn to see that Donut has arrived to rescue them, bringing along Doc and Lopez (who is now just a head again). However, Donut tells them that he had told their ship to leave so he could rescue them all by himself. Enraged by Donut's stupidity, both teams band together to beat up Donut.

At Blue Base, the Blues meet to discuss their plans for the day. Caboose, now the appointed leader of the Blues, orders Tucker to upgrade the communications tower, Wash to go out on lookout duty, and Simmons to do whatever he typically does for the Red Team.

Meanwhile, at Red Base, Doc finishes tending to Donut's wounds. He then complains to Grif that the next time help comes he shouldn't attack it, to which Grif retorts that the next time help comes, it should actually bring some form of help. Donut then asks what happened to the group after he was dropped off at Valhalla. Grif flashes back to the ship, where he accidentally spills soda onto the ship's instruments. In the present, Grif claims that the ship crash-landed for an unknown reason. Sarge arrives and calls the Red team to order. He proposes that the group has been allowing Wash and the Blues to take charge for far too long, and that in order to facilitate rescue, the top priority should be to assassinate Freckles and rescue Simmons from its clutches. Grif asks how they are supposed to destroy a giant war machine, and Sarge responds by figuring that if the ship carried Freckles, it must have carried heavy weapons powerful enough to destroy it as well. Sarge and Grif decide to set out for the ship and leave Donut to guard the Red base. Wash, still on lookout duty for the Blue team, arrives and asks if the Reds has seen anything unusual. They deny this, and Wash leaves.

At Blue Base, Tucker returns just after failing to fix the communications tower. Simmons sees that the Blues have a working gravity lift and asks Tucker how they can power it. Tucker replies that their base has a direct line to the ship, giving them access to almost unlimited electricity. Simmons then decides to borrow some of the ship's fuel for a "side project". Meanwhile, Wash reports back to Caboose saying that he found nothing on the perimeter. When Caboose asks Wash for his opinion on how Freckles would look in a sombrero, Wash quickly makes an excuse to leave by stating he forgot to inspect the ship for enemies. On top of a nearby cliff, a mysterious soldier in steel and orange armor is seen observing the Blues and mutters "Holy shit. It's actually them." He is then alarmed when he realizes Locus is watching them as well.

Meanwhile inside the ship, Sarge, Grif, and Doc break in and begin searching the armory for anything they can use to destroy Freckles. After briefly playing around with sticky-bomb launchers, Grif and Doc search through the ship's records and find that the ship is carrying a large amount of experimental weaponry, though most of it is located in the other half of the ship when it broke off. The two then find experimental teleportation cubes, which Grif instantly takes a liking to. Sarge then discovers a robot even more massive than Freckles and instantly falls in love with it. He then decides to dismantle it and take it back to Red base. Suddenly, the three secretly see Wash wandering through the armory and wonder what he's doing in there.

At Blue Base, Simmons reveals to Wash and Tucker his invention: an inter-canyon communications system, that he has dubbed "Basebook", which gives them a direct line to both Blue base and Red Base. He then checks to see if Sarge has made any updates on his profile, but is disappointed that Sarge hasn't even created a profile yet.

Meanwhile, at the Red Base, the Reds manage to smuggle most of the robot parts out of the ship, with the exception of various pieces Grif left behind so he wouldn't have to carry them. Grif then proposes that they use the teleportation cubes to get rid of Freckles, but Doc is worried that the cubes might have some sort of side effect they are unaware of. Sarge then orders Grif to either test the cubes or test the robot's defense systems by acting as the target. Doc and Donut then go to update their Basebook profiles.

At Red Base, Donut and Doc spend time messing around with Basebook, despite the fact that the only other subscribers are Simmons and Caboose. Donut says that he had spent the entire day cleaning the Red Base from top to bottom, in which Doc tells him about Grif's stuff on the roof. Angered at Grif's sloppiness, Donut confronts Grif, takes one of his teleportation cubes, and uses it to store Grif's stuff. He then tosses the cube all the way to Blue Base, much to Simmons' despair when he discovers the slop.

Meanwhile at the comm tower, Wash tries to help Tucker fix the radio, but the latter declines and angrily explains his frustration with Wash and his leadership methods. Wash admits that he was probably the worst of the Freelancers, and that since Church and Carolina left, he's had no choice but to assume a leadership position, which he has never done before. Tucker tells Wash not to take his position so seriously, as Church never did. Wash then encourages Tucker to try his best to fix the radio, as he has the ability to be a great soldier if he applies the effort. (Eventually it's revealed that Wash was partly responsible for the ship crashing by accidentally knocking a cable out of a wall.) Tucker then realizes that he had forgotten to turn on the radio, which was why it wasn't working. Unfortunately, Caboose arrives with Freckles and orders the two to return to Blue Base and clean up Grif's stuff. Wash tells Tucker to go to Blue Base alone and distract Caboose while he goes back to the ship to finish something that can "put a stop to this".

Lopez finishes telling Lopez 2.0 the story about the reds, leaving 2.0 shocked at the treatment Lopez received at their hands. Lopez encourages his successor to begin insulting Sarge, who is of course oblivious to what the two robots are saying.

At Blue Base, Washington returns from the ship, but is suddenly cut-off by Freckles, who declares that Washington has failed to follow Caboose's orders, and prepares to eliminate him. Fortunately Caboose appears just in time and stops Freckles. Wash calls Caboose down for a talk. He apologizes to Caboose that Church left without a goodbye, and adds that he was wrong to leave him along to deal with it himself. He admits that he should have been there from the start, and shows Caboose what he has been making - a new version of Caboose's old helmet. Caboose is overjoyed with his gift, and Wash tells him that Freckles can be dangerous. This prompts Caboose to turn the role of team leader back to Wash, which Freckles concedes. Then the visor on Caboose's new helmet shorts out.

Doc treats the steel and orange soldier's injured leg, despite not feeling his toes. Wash holds the soldier at gunpoint and begins to interrogate him. The soldier introduces himself as Felix, and reveals to the Reds and Blues that the planet they crash-landed on is called Chorus. A former UNSC colony at the edge of colonized space, Chorus had been forgotten by the UNSC after the Great War. Simmons wonders how they could have gotten off course so badly, though Sarge tells him to not worry about that (as it's revealed that Sarge tampered with the ship's engines.). Felix explains that since being forgotten the planet's citizens tried to govern themselves, but things got so bad a civil war broke out between the planet government's Federal Army of Chorus (dubbed the Feds) and a rebel group called the New Republic, the latter Felix works for as a mercenary. Felix explains that the New Republic sent him to convince the Reds and Blues to join the rebel cause against the Feds, as their exploits against Project Freelancer have many consider them "some of the galaxy's greatest soldiers."

At Red Base, the Reds finish their base fortifications. Simmons, having returned to the Reds, shows them a minefield he set up while Grif and Doc show off the teleportation cubes. During a demonstration, Doc is accidentally hit by a cube and disappears, but no one except Lopez notices. Sarge orders Lopez and Lopez Dos.0 to prep C.C. so he can repair her. Knowing that C.C. will attack everyone again when repaired, Lopez and Dos.0 are reluctant to follow Sarge's orders. After having his will broken, Dos.0 starts repairing C.C. himself, not caring that she may kill the Reds and Blue. Lopez suggests to upload himself into C.C. so they can have their revenge. However, Dos.0 decides instead to upload himself into C.C. instead.

At Blue Base, Tucker fixes Caboose's helmet visor, but his radio breaks in the process. During this, Caboose reaffirms his friendship with Tucker. Meanwhile, Wash asks Felix about Locus who is revealed to be a very dangerous and unstable individual who has forsaken his own name and took on the name of his armor. Felix then asks Wash where Church and Carolina are, with the latter saying that they left shortly after the crash-landing. Wash asks Felix how Locus got the cloaking device, believing that only Project Freelancer had access to that sort of gear. Felix states that they're in the future now, and the Feds have access to the advanced technology compared to the New Republic. Preparing for the imminent battle, Wash dons his old steel color armor.

Locus and the Feds attack Felix and the Reds and Blues starting the firefight while Freckles fights against Lopez Dos.0. Sarge and Simmons get in the tank and quickly eliminate several Feds. The Feds retaliate using a rocket-mounted warthog. However, Grif uses his teleportation cubes to have the warthog fall on a squad of Feds. Meanwhile, Freckles becomes damaged and starts losing power in his fight with Dos.0, who voices disappointment with Freckles with siding with the Reds and Blues. Before Dos.0 can finish off Freckles, Donut arrives and threatens Dos.0. Dos.0 rhetorically asks Donut (pinkie) what he's going to do, to which Donut replies in Spanish that he's lightish-red. Donut uses a teleportation cube on Dos.0 and tosses him into the Red Base's minefield, destroying him.

As the fight progress, Locus fires a sticky grenade at the Reds' tank and destroys it, though Sarge and Simmons narrowly escape. The Reds and Blues begin to run low on ammo asmore Feds continue to pour in. Simmons and Wash head to Blue Base to recharge Freckles, but find the process very slow. They soon learn that the source to the slow recharge is coming from Red Base, with Donut confessing that he's still downloading a picture of Freckles on Basebook. As this is happening, Locus fires his sniper rifle at a nearby plasma grenade that explodes and knocks out Donut. Overhearing this and becoming frustrated Tucker charges to Red Base to cancel the download, taking out several Feds along the way. Tucker is able to do so but is corned by a Fed, but Tucker is rescued by Lopez (now in Dos.0's robot body). With Freckles' power returning, the Reds and Blues begin to fight back against the Feds. However, Locus uses a railgun to knockout Wash and Sarge while Lopez is shot by a sniper, rendering him inactive. Freckles also becomes critically damaged trying to protect the group. Suddenly, an explosion occurs from a nearby cave, with New Republic reinforcements finally arriving. Freckles, despite being badly damaged, is still able to fight and takes out several Feds.

Tucker, after being knocked out by the falling boulders, wakes up in an underground medical bay with Felix at his side. It's shown that they are at the New Republic's headquarters. Felix reveals to Tucker's horror that they had to leave behind Wash, Sarge, Donut and Lopez. Tucker is then introduced to the New Republic's leader, Vanessa Kimball. She informs Tucker that Caboose, Grif and Simmons are at the base's mess hall. After Tucker leaves, Kimball informs Felix he is not getting fully paid due to what happened. Meanwhile, Caboose, Grif and Simmons are outside the mess hall, which is closed due to Grif's overeating. Tucker arrives, pondering that it's only the four of them that have made it. Felix calls the four over to Kimball's office. Kimball tells the four that their friends are alive but taken captive by the Feds. Kimball makes them a promise: if they help the New Republic take back Chorus, they'll help save their friends and grant them a ship to leave the planet once the war is over. The Reds and Blues are reluctant, but Kimball reminds them that the civil war has gone on for too long and taken too many lives. She also adds that the young, inexperienced rebel soldiers are scared and in need of hope. The Reds and Blues head outside and meet several young Rebel soldiers. Tucker orders them to start doing drills, much to Grif's displeasure.

Tucker and Kimball privately talk about the civil war and why Felix is in it. Kimball reveals that Felix had been fighting in the war before she became an officer and that she's the fourth leader of the New Republic, as her predecessors were all killed. Tucker asks Kimball what makes her think Felix, being a mercenary, won't just end up leaving with his money, and Kimball reveals Felix isn't just fighting for money - he has a common enemy with the New Republic; Locus. Kimball explains that Felix and Locus were once partners in the UNSC during the Great War and saw some of the worst of the fighting. They never got along and were always competitive, but they were willing to work together to survive. After the war, neither one could stand civilian life, so they became mercenaries and were hired by the New Republic and FAC respectively to fight for them in the civil war. Kimball says that the civil war may finally show who is the better soldier between Felix and Locus. Kimball reminds Tucker that everyone has their own reasons of being in the civil war. She also reminds him that the five-day limit of saving the captured Reds and Blues is almost up and that he and the others need to make the most of it.

At the New Republic HQ, Tucker informs Caboose, Grif and Simmons that they are leaving to rescue the captured Reds and Blues. Tucker tells the guys that they are going alone without the help of their squad, fearing they might get killed. The guys have concerns, but Tucker reminds them of the past adventures they went through and managed to survive them by just winging it. Tucker already has taken the data he took from the FAC from Kimball's office that he and the guys will follow to the FAC compound where the captured Reds and Blues are. The guys eventually agree, steal two warthogs and leave the Rebel Base. Felix, Kimball, Bitters, Smith, Palomo and Jensen find a recording of the Reds and Blues stating they have already left.

At the New Republic HQ, Smith, Bitters, Palomo and Jensen talk about the Reds and Blues leaving them behind. Smith tells them that Kimball has denied a search and rescue mission. Bitters believes that the guys never really cared about them though Palomo believes that they may come back. Felix arrives and tells them that they shouldn't be too hard on the Reds and Blues, as they did what they thought was best. But Felix tells the lieutenants that he's still going to beat them up when he finds them.

The episode takes place a few weeks earlier before Thin Ice back at Crash Site Bravo, when Sarge, Donut and Wash are captured by the FAC. Locus reminds Wash he gave them a choice to surrender and they instead chose to fight, which he admires. Wash goes unconscious from his injuries and suffers flashbacks from his time as a Recovery agent, such as being given a mission to find and kill South in Reconstruction and shooting Donut and Lopez in Recreation. At a FAC base, Sarge, Donut and Wash are handcuffed with Sarge insulting the Feds. A high-ranking officer arrives and instead of questioning them, he apologizes and orders a guard to un-cuff them and return their weapons, which confuses Sarge, Donut and Wash. Wash, angry about the conflict he and the others went through, holds the officer at gunpoint but the officer faints.

The guys head outside still confused about the situation. The officer, introducing himself as General Donald Doyle, questions the guys on how much they really know about the New Republic. Doyle gives more backstory on Chorus' history, revealing that the New Republic aren't looking to free Chorus, but to dominate it. Doyle admits that times have been hard on Chorus, but despite being cut off from the UNSC the FAC were able to keep the peace, until the New Republic emerged with bombings and riots which Doyle considers not acts of freedom but acts of terrorism. Doyle then says that he ordered Locus and his men to confirm the location of the Reds and Blues and bring them to him as soon as possible, but admits that he should have been more specific on how Locus should have completed the mission. Doyle admits to the guys that he has very little military training and was actually a personal secretary to a brigadier general, but the FAC's previous military leaders either left or have died during the civil war, leaving him in charge of the FAC. Doyle tells the guys that escaping Chorus is impossible now, but promises them that if they help the FAC defeat the "terrorists" and rescue the other Reds and Blues, they'll be free to leave Chorus. The guys, feeling uneasy about the situation, agree to join the FAC.

Continuing from Thin Ice, the now reunited Reds and Blues discuss about the New Republic and the FAC, seeing as both sides are in dire situations and are not guilt-free of their actions during the civil war. Wash suggests that if they can get Doyle and Kimball to meet and come to an understanding, then the civil war will end and they can get to leave Chorus and go home. Simmons points out to the guys that the FAC base's alarm isn't sounding off anymore. When the Reds and Blues head outside, a battle apparently had taken place but no soldiers are around. A FAC soldier radios through a warthog that he and the others are under attack by unknown enemy contacts. Sarge, Donut and Lopez take a rocket warthog to establish a perimeter. A FAC soldier runs to Sarge and informs him that the New Republic isn't attacking, but he is disintegrated before he could reveal who is. The FAC soldiers are all massacred, though Doctor Grey is still alive. After escaping an exploding warthog, the Reds and Blues are held at gunpoint by Locus and his squad, who are revealed to have killed the FAC soldiers. Felix suddenly arrives and saves Wash from Locus' sniper shot.

After Doctor Grey tends to Carolina's leg wound, she and Church tell the Reds and Blues that they've picked up a transmission between mercenaries selling Project Freelancer equipment, they left to investigate (This explains their no-show during Season 11). Church and Carolina reveal that Control's mercenaries have obtained Project Freelancer weapons and equipment and are mass-producing them and improving them to the point where some of the equipment don't need A.I. assistance. Simmons points out the UNSC confiscated the equipment after Project Freelancer was defeated, but Carolina reveals that the equipment was put on the Reds and Blues' ship. She also says the ship conveniently crash-landed on a war-torn planet in need of war supplies, implying that Control had the mercenaries sabotage the ship to crash on Chorus (A flashback shows Simmons updating the ship's computer that may have caused the crash, but he and the other Reds and Blues are not responsible). Tucker reminds the group that they need to warn the FAC and New Republic about the mercenaries' true plans. With Locus, Felix and the mercenaries infiltrating both the FAC and New Republic and watching Doyle and Kimball closely, Carolina says that they can't trust anyone and can't warn the respective sides yet, as they need more information on the mercenaries. Church and Carolina finish by stating that the mercenaries have plans for different scenarios, and that regardless of what it is, they're going to finish what they've started.

At the New Republic HQ, Felix tries to comfort Kimball over the Reds and Blue's "death". Felix attempts to convince Kimball to lead the Rebels into a final confrontation with the FAC at the planet capital Armonia where they are holding a rally for a final push. Using the Reds and Blue's sacrifice as inspiration for the Rebels, Kimball eventually agrees with Felix and begins making preparations.

At concurrent times at their respective headquarters, Doyle and Kimball give the FAC and New Republic respectively speeches about the impending final conflict for Chorus. At Armonia, Locus informs Doyle that the New Republic has sent Felix out on a mission, and Locus is going to find him, causing Doyle to panic as he wants Locus to stay. Locus assures Doyle that after he deals with Felix, he'll come back to "take care" of Doyle.

Still in radio contact with the Reds and Blues, Locus and Felix, stationed at the radio jammer the Reds and Blues have coordinates to, informs them that the FAC and New Republic are converging at Armonia, where the ensuing battle will leave no survivors. Believing the Reds and Blues have failed in saving Chorus, Locus and Felix reveal that Control is willing to give the Reds and Blues a chance to save themselves with a deal: if they return to Crash Site Bravo, there will be a ship waiting there that will take the Reds and Blues off Chorus and send them home. The Reds and Blues are not convinced, but Locus has them see a transport he mentioned beforehand leaving the fuel station. Locus and Felix inform the Reds and Blues that if they decide to leave there is one condition: they are to never tell anyone what happened on Chorus, as Control will know if they say anything. Before ending radio contact, Locus informs the Reds and Blues that they have an hour to accept the deal, and if they refuse, the mercenaries will find and kill them.

Meanwhile, the New Republic infiltrates Armonia as Palomo, Smith, Bitters and Jensen lead a group of rebels into the city. Unbeknownst to them are cloaked mercenaries watching them, who are ordered to ensure that no one leaves the city alive.

Back at the abandoned gas station, the Reds and Blues contemplate the deal from Control and the choices they have. Church tells the Reds and Blues that they all have three options:

Option A: The Reds and Blues go to a remote location and stay low for a while until they can find enough information on Control and the mercenaries to bring them down. However, they will not be able to prevent the FAC and the New Republic from destroying each other.

Option B: Based on if Locus and Felix are telling the truth, they all accept the deal and return to Crash Site Bravo and take the transport home. If anyone asks, they stole the transport and escaped Chorus before the FAC and New Republic destroyed each other.

Option C: The Reds and Blues teleport to the radio jammer, fight off the mercenaries and the defenses, shut down the jammer, and then reveal to the FAC and New Republic the mercenaries' true plans. But, the mercenaries defending the jammer are equipped with stolen Project Freelancer equipment and armed with advanced alien weapons, meaning that most of the Reds and Blues won't survive. Even if they do somehow manage to shut down the jammer in time, they would have to convince the FAC and New Republic that the "dead" people are alive and telling the truth.

Despite the options, Wash has a fourth option: he, Church and Carolina do Option A while the Reds and Blues do Option B. The Reds and Blues are reluctant to leave Chorus behind, but Doctor Grey reminds them that the civil war is not their responsibility as they already accomplished their goals and suggests they take the opportunity to leave.

At the radio jammer, Locus radios to a team at Crash Site Bravo if the Reds and Blues have arrived as the one-hour deadline is near. The team reports that the Reds and Blues haven't arrived. Felix, noticing something odd, asks Locus how many mercenaries are with them, with Locus replying four while the rest are at Armonia watching the FAC and New Republic. Felix exposes the fifth "mercenary" who is Carolina in disguise. Wash tries to get the jump on Felix, but he gets jumped on by Locus instead. Holding Wash and Carolina captive, Locus and Felix have the mercenaries look for the Reds and Blues when Caboose accidentally fires his assault rifle. Felix asks Wash and Carolina what they and the Reds and Blues would have been able to do here. Wash replies not much, and tells Locus and Felix that they forgot to take in account the genius (Doctor Grey) and the dog (Freckles). As he says this, two mercenaries search a cave but are caught off guard when Caboose's assault rifle, controlled by Freckles, kills one of the mercenaries and the fight between the mercenaries and the Reds and Blues begin. The Reds and Blues manage to take out the remaining mercenaries while Wash and Carolina fight Locus and Felix. Locus knocks Carolina out and then takes on Wash while Felix then takes on Tucker.

Meanwhile back in Armonia, Kimball and Doyle stare each other down, accusing each other of killing the Reds and Blues in cold blood. To instigate the battle, a mercenary uses a sniper rifle to kill one of the Rebels in Kimball's squad, beginning the battle for Chorus between the FAC and the New Republic.

Back at the radio jammer, Wash searches for a cloaked Locus, who of which questions Wash's reasons for fighting and states that he was once a real soldier. Wash on the other hand states that he was a different person then and questions why Locus differentiates a soldier and a human being. Locus explains that a soldier does not question his orders and simply does what is expected of him, but Wash criticizes Locus for hiding behind his "soldier" ideology instead of owning up to his past actions. This results in Locus tackling Wash.

Meanwhile, Tucker faces off with Felix. Felix reveals that he was able to convince Kimball and the New Republic that the Reds and Blues died heroically and launch an attack on Armonia, which he says he gave a performance of lifetime. Felix then begins a monologue on how he, Locus and the mercenaries had been playing the people of Chorus for years to further their goals. Felix then realizes that the Reds and Caboose are trying to jump him and uses a sticky detonator to incapacitate them, and stabs Tucker in the stomach. Felix continues his monologue to Tucker by saying that the only reason the Reds and Blues were alive up to this point was so that they can be used to speed up the Chorus Civil War, as Control believes that the idiocy and incompetence of the Reds and Blues will rack up more deaths for the armies and would later then have the Reds and Blues killed. Felix ends by saying that if he is stronger and faster than anyone then he has the right to kill them.

Tucker, wounded, is able to reveal Church to Felix who becomes confused. Tucker reminds Felix that as an A.I., Church can help him run his equipment, more specifically his helmet cam. At this point it's revealed that Tucker had been recording Felix this whole time. In response, the Reds, Caboose, Doctor Grey and Carolina recover and disable the radio jammer. Church sends the recorded video to Armonia, where Kimball, Doyle, the FAC and the New Republic watch the video of Felix's monologue exposing the mercenaries' involvement in the Chorus Civil War.

At the New Republic HQ, Palomo dramatically tells his comrades about how he looked after Tucker while he was hurt, after the Feds and Rebels rescued the Reds and Blues from the radio jammer station. Tucker, having healed from his wounds, interrupts Palomo and explains what really happened. Following this, Tucker, Simmons, Caboose, and Grif thank Jensen, Palomo, Bitters, and Smith for rescuing them, though Grif explains that they never intended to be rescued and saved them strictly for selfish reasons. In response, the recruits thank the four captains as well. Meanwhile, Kimball and Doyle, after agreeing to a truce, discuss moving the New Republic to Armonia, though Doyle is reluctant. The two then thank Washington, Sarge, Donut, and Lopez for their help, but Wash tells them to thank Tucker, as he was the one who formulated the entire plan. When Doyle asks the four if he can do anything for them, Sarge requests for a rank higher than Captain. In accordance to his request, Doyle promotes Sarge to Colonel, with the latter gloating it to Grif. Near the cavern lake, Church finally manages to decrypt the crashed ship's manifest, with help from Delta, and proceeds to process it. After he finishes, he reveals to Carolina that Charon Industries, a large corporation specializing in cryogenics, technology, and weaponry, owned many of the equipment on the ship. He then explains that Project Freelancer stole certain pieces of equipment from Charon’s private security force, mainly known to the Freelancers as the Resistance (Also known as the Insurrection), and the company and UNSC have been working closely together. Suddenly, Church soon demands to speak to Dr. Grey, in order to gain all known radio frequencies used by the mercenaries that the crew captured.

Meanwhile, Control scolds Locus and Felix for their failure and decides that, due to their operation being in jeopardy, they will go to war against the Reds, Blues and the Chorus armies. Suddenly, the Reds and Blues interrupt their transmission and acknowledge Control’s true identity: Malcom Hargrove, CEO of Charon Industries and the Chairman of the UNSC Oversight Subcommittee. The Reds and Blues then confidently inform the Chairman and the mercenaries that they, the FAC, and the New Republic will join forces and accept his declaration of war, finishing that they are not going anywhere.

A UNSC ship called the Tartarus stumbles upon a lone Pelican, and the ship's crew try to communicate with it. After the Pelican sends flashes of light to signify help, the crew on the Tartarus allow the ship to land in their docking bay, so they can assist it. When the crew approach the Pelican, weapons at the ready, they discover the ship's "sole" passenger: Felix. Felix quickly gets along with the Tartarus' crew, and asks them about their current situation. The crew explain that they're transporting criminals for the UNSC, and the ship's captain, Mayers, jokes that nobody gives a "rat's ass" about them. Felix, however, says that he's interested and proceeds to attack the crew members, causing Mayers to activate the ship's alarm. Unfortunately, Locus, accompanied by other mercenaries, de-cloak from the Pelican and raid the ship. After killing all of the ship's crew, along with their Captain, Locus and Felix make their way to the intercom, and inform the prisoners of their war situation on Chorus. Locus and Felix then explain that they are looking for people to recruit in their ranks and, in exchange, will get a large profit from it. Felix asks that if anyone is interested, to grasp their cell bars in solidarity. While some prisoners agree to join them, others refuse. Regardless, Felix opens the cells' airblock doors, purging several prisoners out into deep space. Felix and Locus remain unharmed with the use of their grav boots. After Felix closes the doors, Locus congratulates the remaining prisoners on being "hired".

Upon returning to the ship's main control bridge, a mercenary informs Locus and Felix of a prisoner, who saved himself from being purged by tying his bedsheets to his cell bars, wishing to speak with them. Locus and Felix agree to see the said prisoner, which turns out to be Aiden Price, the former Counselor of Project Freelancer. The Counselor tells Locus and Felix that he knows specific details about the Freelancers that they will find useful, such as Wash and Carolina's weaknesses. Skeptical at first, Locus and Felix agree to have Price join their ranks and the latter leads them to another prisoner that has history with Project Freelancer; a prisoner that he believes will be of good use.

In Downtown Armonia, Grif is greeted by several Feds and Rebels, much to his annoyance. He then encounters Matthews, who thanks him for saving the armies back at Radio Jammer Station 1C, for the 57th time, angering Grif. Grif then asks Matthews about Kimball's whereabouts, in which the latter tells him that she's at the Armory. Grif makes his way there. They find Simmons, Lopez, and Donut at the armory; Simmons and Donut argue with a Fed soldier regarding his heavy machine gun turret, as well as his armor color. Grif approaches them and asks them about Kimball's whereabouts. Donut explains that she was last seen in the training room, so Grif takes off to the training room, leaving Donut, Simmons and Lopez to continue arguing with the heavily armed soldier. At the Armonia Training Facility, Wash instructs newly promoted lieutenant Palomo, Smith, Bitters and Jensen during a target practice session. Grif interrupts the training, and asks Wash where Kimball is. Wash, in turn, brings up Grif's absence during training, and when the latter remorselessly admits that he wasn't present, Wash punishes the lieutenants for Grif's actions. Regardless, Wash informs Grif that Kimball is in a meeting with Doyle at the War Room, causing Grif to rush over there. At the War Room, Kimball and Doyle argue over the Feds' overuse of ammunition, due to them preferring to use Assault Rifles over DMRs. Grif interrupts them and complains about why he isn't allowed to have second helpings in the mess hall. Doyle explains to him that it is because since the two armies have joined forces, there have been current food shortages, but this quickly leads into an argument between him and Kimball. Grif continues to try to explain his case, but Kimball, annoyed, forces Grif out and places him on dish duty. After the two calm down, Doyle informs Kimball of their men's most recent assault.

At Charon Research Complex 2C, a Fed approaches Carolina and Epsilon and informs them of their recovery of a domed energy shield. Carolina applauds the Fed and suggests they begin running some tests with it. Epsilon, however, states that they should instead focus on the floating tower, in which the Fed clarifies that it is actually a temple created by the aliens. Surprised by this, Epsilon and Carolina question the Fed on the temple, in which the latter explains that many of Chorus' inhabitants see these alien-structures as commonplace, with some of them even having visited them on tours. After Carolina tells the Fed to go secure the Freelancer equipment, Epsilon expresses his concerns about the temple despite how the residents of Chorus see it. Carolina then proposes they get help from someone who is an expert on the planet's alien technology: Dr. Grey. Dr. Grey is teleported to the research complex and explains, rather quickly, that the temple emerged from the ground after the UNSC pulled out but hasn't shown any activity thus far. After Tucker and Sarge enter the scene, Carolina orders Dr. Grey to study Charon's research while she and Epsilon take care of some armor upgrades.

Tucker, Caboose, Sarge and Grey arrive at a Charon excavation site located near the entrance of the floating temple. The group approaches the site to find it deserted. Grey has Tucker, Caboose and Sarge keep watch while she investigates the temple. Caboose and Sarge stand watch on top of the site's base, while Tucker is with Grey as she is translating ancient alien language. When Tucker pulls out his plasma sword, a holographic projection lights up with a symbol over the door. Tucker carefully approaches it and when a projection of an alien suddenly appears, he swings his sword at it in shock and unintentionally activates the dormant temple, which gives off a bright purple light that can be seen by the Chorus soldiers at the captured Charon complex.

While this has been going on, Grif and Simmons had returned to Armonia with the captured weapons. As Grif leaves to continue his laziness, he is confronted by the lieutenants and a mob of Chorus soldiers, who tell Grif that since he has been absent from training, Wash has been making them run an abundance of laps. Grif tries to leave but the mob attacks and beat him up. Meanwhile, Donut is playing with an old alien rifle that was with the captured weapons in the armory with Simmons looking on. As the events of the temple happened, the rifle instantly activates and starts randomly shooting, causing destruction and chaos in the armory. Lopez arrives shortly after the destruction ends, and claims that he is not cleaning the mess up.

Inside a tractor beam tower at Crash Site Alpha, the Counselor assures Felix and Locus that the prisoner they picked up, who calls himself Sharkface, will be useful to them. Suddenly, the tower shuts down and a space pirate informs Felix and Locus that all of their weapons and equipment have suddenly exploded. Just then, a red light appears behind the two mercenaries.

Meanwhile, Doyle, Kimball, Wash and the Reds contact the group at Charon Research Complex 2C, who inform them of the activation of the alien tower. Grey reveals that all of the alien weapons and temples on Chorus weren't broken, they were just deactivated. Confused about how they did it, Tucker explains how his quest with the Alien (from The Blood Gulch Chronicles) and the revelation of his sword being a key caused the tower to activate, and ends his story by showing a picture of Junior on a fifth grade basketball team, confusing Doyle. After Wash gets everyone back on track, Carolina points out that because their Charon weaponry exploded, the space pirates most likely had the same experience with their weapons, giving them the advantage in numbers and weaponry. Kimball then states that while they've had small victories in the past few weeks, they still can't make contact with the UNSC due to the pirates' tractor beams and radio jammers. As a result, Kimball suggests they take down the tractor beams at Crash Site Alpha, but Wash and Doyle explain that the beams will be heavily guarded and won't be taken down easily. Regardless, Kimball argues that they must make some kind of move now while the pirates are down, prompting Tucker to bring up the map that the tower revealed.

Tucker suggests they follow the coordinates and investigate where it leads and what is there but Kimball argues against it. Wash adds that the pirates will be able to track and follow them there, but Epsilon and Carolina state that they can't let whatever the coordinates lead to fall into Charon's hand. As a result, Doyle proposes they divide and conquer, with the Blues, Dr. Grey and Carolina following the coordinates and Kimball leading an attack with the Reds, Rebels and Feds to Crash Site Alpha. All the while, Doyle, Donut and Lopez will stay and guard Armonia.

At Armonia, the Chorus armies prepare for their assault on Crash Site Alpha. Kimball approaches two Feds and orders them to line up their warthog with the others, but the two tell her that she must fill out a vehicle request form for them to do so. Wash steps in and reiterates Kimball's exact orders to the Feds, which the two respectfully follow without question. As Kimball expresses her dislike for the Feds Wash advises that she should have faith in them and they may do the same to her. Suddenly, Jensen passes by in a Warthog and crashes it, somehow causing a large pile up of vehicles (She was going five miles per hour).

Meanwhile, the Blues, Dr. Grey and Carolina make a pit stop at an uncharted area on Chorus in order to refuel their warthogs. Carolina suggests that she and Church test out their enhancements while they wait, but Church advises her to loosen up, not wanting her to outwork herself. After the others finish refueling, Tucker makes a sexual joke and says his signature "Bow chicka bow wow!" catchphrase, but is interrupted by Carolina, who says it too in an attempt to loosen up. This, unfortunately, only causes the situation to grow awkward.

The space pirates arrive at the alien installation displayed on the map. Locus and Felix meet one of their scientists, who explains that the device they found there is some sort of gateway. He also states that there seems to be a sort of strong energy coming from the Beam. When asked if it could be weaponized, the scientist explains that it can not, for its power could be too great. Nearby texts reveal that the gateway will only allow someone who is judged to be a "true warrior" through. When the scientist is unable to explain the consequences for failing, Felix pushes one of his soldiers into the gateway to test it out. Meanwhile, Sharkface is approached by the Counselor while armoring up for his mission: to kill Agents Washington and Carolina. The Counselor attempts to evaluate his psychology and go over the mission briefing, but Sharkface is dismissive of him. But, he reveals that he has had a past encounter with the two Agents stating that they 'dropped a building' on him, 'killing all his friends'. He then asks the Counselor how he ended up on the Tartarus, and the latter reluctantly reveals that he was betrayed by people he trusted, and upon further prodding, admits that he would kill them if it would allow him to repair his life.

Back at the alien installation, the soldier returns from the gateway and claims to have had visions of "everyone he ever wronged". The scientist checks him over and states that he is physically healthy, despite his scares. Felix is annoyed at the potential visions he would experience, stating that meeting everyone he ever wronged would take weeks. However, Locus decides to personally attempt the test since the group is short on time. Reluctantly, Felix agrees and goes with him, telling him not to 'cry if he loses'. In the gateway, Locus' equipment malfunctions. While attempting to contact Felix, he is questioned by an ominous voice, questioning who he is. Before he could respond, he is immediately ambushed by a group of UNSC soldiers who believe he is a monster and cannot understand his attempts to communicate.

The Reds, Wash and the Chorus armies arrive at the Desert Refueling Station in order to refuel their vehicles. Wash approaches the Reds and updates them on the status of the Blues, Dr. Grey and Carolina detailing their discovery of a large jungle temple emitting energy into the sky. Wash then expresses his admiration for the Reds for their decision to fight with the Chorus armies, and recollects on their past experiences together. Seeing through his sentimentality, Grif and Simmons realize that Wash believes they are going to die on the mission, but Wash denies this. Wash then asks what unit they're in, in which Sarge states that he's volunteered them for the front lines, which shocks Grif and Simmons. Wash suggests that they look on the bright side, but miserably fails to follow up on what the bright side is.

Meanwhile, at the jungle temple, Dr. Grey informs the Blues and Carolina the temple's rules after deciphering them. Tucker suggests that he fits the bill of being a true warrior simply because he possesses the sword. The others go along with it and allow Tucker to enter. However, Tucker is quickly forced out after entry and tells the others that he saw multiple illusions of Felix and Locus, while on the other side, who all quickly overwhelmed him. As a result, Carolina decides to enter the portal herself. Upon entry, Carolina immediately loses contact with Epsilon and is soon spoken to by a booming alien voice, the same that spoke with Locus before, who questions her on who she is. Carolina states that she is his true warrior but an illusion of Tex appears and states otherwise, shocking Carolina. Suddenly, the rest of the Freelancers appear behind Carolina, shocking her even more. After Carolina returns from the portal, Epsilon, having only seen static after entering, questions her on what she saw, but Carolina refuses to discuss it. As a result, the group decide to send Caboose through, believing his strength and "empty head" may correspond with the instructions.

As Kimball and the Chorus force make their way to Crash Site Alpha, one of her soldiers informs her about the away team's discovery of Santa. Upon hearing this news, Kimball and the entire force halt in their tracks.

At the Jungle Temple, Santa explains to the Away Team about his creators and the treasures they've scattered throughout the galaxy, with Chorus containing some of the most valuable. He states that Tucker activated the “Temple of Arms” (which activates all alien weapons on Chorus) back at the excavation site, prompting Tucker to ask why he deactivated it afterward. In response, Santa reveals that not long ago a group of meddlers gained partial control of the tractor beams and used them to manipulate the planet’s gravitational field. This reveals that Locus, Felix, and their band of Space Pirates were truly responsible for the Red's and Blue's shipwreck from Season 11. He then adds that he deactivated the Temple of Arms because Tucker did not respond in the voice of his people and needed to bring him to the Jungle Temple due to protocol for further testing. Dr. Grey then questions why he tested them if Tucker already had a key, in which Santa reveals that the key of Chorus, located in an east mountain temple, had not yet been obtained and had to make sure that the presence of two keys was not an error. Carolina and Epsilon then ask Santa about the other temples on Chorus. Upon listing them out that include Weather Manipulation, Bountiful Harvest, Interior Decorating and Procreation (increasing one's sexual drive), Santa describes the Temple of Communication, which has the power to transfer a signal to any desired communication device in the galaxy and is capable of ripping through the Space Pirates' radio jammers "without question". This excites the group, now knowing they can radio for help.

Because of this, the group decide to cease Kimball’s assault and head for the Temple of Communication. Before they leave, Santa informs them of the 'Purge', which has the ability to exterminate all sentient life on Chorus upon activation by a key in case the Chorus inhabitants are deemed not worthy of receiving his Creator's gifts. After Epsilon asks for its location Santa displays the coordinates for him and reveals that he updates all of the temples with these maps. Unfortunately, Church gets a bad feeling, and a band of Space Pirates, after listening in on their conversation, ambush the group. Luckily, Carolina activates her Domed Energy Shield and saves her teammates, before the pirates could shoot them down. Sharkface then appears and orders his men, once the shield fails, to kill everyone except Carolina, so that he can kill her himself. He then leaves for the east mountains to get the key, but not before thanking them for the information and revealing that the space pirates are waiting for their friends at Alpha.

Meanwhile, at Alpha, the Reds and Chorus force arrives and executes their attack on the space pirates. However, the Tartarus soon emerges from the sky and hovers over them, with countless Space Pirates jumping out of it, quickly outnumbering them. Felix then briefly radios Kimball, reminding her he was her right-hand man and knew about this attack, much to her anger. Before Kimball could scold Felix, he mutes her. Immediately after, Sharkface contacts Locus and Felix and informs them about the Purge and the location of the key that can activate it, stating that he is on his way there now. Felix decides to go after it with Sharkface while Locus stays at Alpha. Before leaving, Felix tells Locus to kill Kimball quick if he gets the chance, since she and Felix were friends after all.

With the battle raging at Crash Site Alpha, two Feds, one of which is injured, call for a medic. The Rebel Medic rushes over to assist them but quickly becomes confused after the injured Fed explains that his "lap" was shot, as well as his "tummy". As the Reds drive past, Sarge pitches a strategy to overcome the enemy, by creating a slow motion car crash. Not fond of the plan, however, Grif and Simmons suggest they regroup with Wash. Eventually, the assault team are overwhelmed by Charon fire, forcing them to take cover inside the ship. Simmons comes up with a plan to create a large smokescreen by using the ship’s engine in order to create an escape. The lieutenants agree to help him, though Bitters warns him that sniper fire is coming from out of nowhere in that area (Most likely from Locus), in which Wash states that he’ll take care of it.

Meanwhile, at the Jungle Temple, the away team continue to take refuge inside Carolina’s domed energy shield while the space pirates prepare to open fire. Carolina tells Epsilon to prep her Speed Boost but the latter assures her that it won’t work. With Santa being unable to assist them and the shield running out of power, Dr. Grey orders Freckles to run command “Aimbot” and proceeds to hop through the portal. After the shield lowers, Freckles, in response to Grey’s command, rapidly fires at the four pirates and kills them. After Grey returns from the portal, the team is contacted by friendly forces, who inform them that a Pelican is en route to their position. Confused, Carolina explains that Doyle was supposed to send troops to the east mountains first, in which the soldier assures her that he did.

Meanwhile, Felix, accompanied by a few pirates, unites with Sharkface at an East Mountain Range and the two make their way to the Temple of the Key. Felix enters the temple but finds no trace of the key, with Santa telling him that the key has already been claimed. It is then revealed that the recipient of the key is Doyle, who was dropped off by Lopez and Donut via Pelican. Lopez informs Doyle that they’ll have to land farther away from his position because the temple is interfering with their controls, though Doyle doesn’t understand him. Despite this, Doyle is forced to hide after the pirates begin searching for him. The away team finally arrives at the Temple of the Key, where Carolina radios Doyle inquiring about his location. Doyle, unfortunately, gives a vague answer, due to the fact that Felix is searching for him nearby.

Somewhere out in the eastern mountain range, Carolina catches up to a fleeing Sharkface and the two quickly engage in battle. Carolina initially bests Sharkface but the latter gets up and disarms Carolina of her weapons. Meanwhile, at Crash Site Alpha, a Fed and a Rebel fight over a section of cover until the Rebel is killed by a cloaked Locus. Locus is then informed by one of his men that enemy reinforcements are nearby, though Locus shows no sign of worry as he acknowledges his assurance that the Chorus armies will be dead before their help arrives. Suddenly, Washington speaks to Locus via open channel radio and gets him to give away his position by causing him to shoot at his empty helmet, which Wash raises by using his battle rifle. Upon seeing the sniper's vapor trail, the lieutenants fire at Locus and force him to take cover. Jensen then gives Kimball and the Reds the okay to release the smokescreen, which they do, shrouding the battlefield in black smoke. After the Reds kill numerous Space Pirates by executing a slow-motion car crash, they, along with the rest of the assault team, escape Alpha. Wash then radios Locus again and reveals that he knew the latter was watching him while he was with the Federal Army and decided to watch him too. He then adds that he is the real soldier while Locus is simply a killer, before logging off. In response, Locus demands a vehicle.

Back at the east mountains, Doc continues to throttle Tucker in maniacal anger while Caboose explains their relationship with Doc to Dr. Grey. After Grey knocks Doc off of Tucker the group is confronted by two pirates. Luckily, Donut and Lopez arrive and kill the pirates. The two then join Tucker and Caboose in finding Doyle, while Grey stays behind to look after Doc.

Meanwhile, Carolina and Sharkface continue their brawl, both being equally matched. As both exhibit impressive moves and fighting tactics, Carolina dislocates Sharkface's shoulder. However, Sharkface quickly fastens it back in place and begins to outmatch Carolina, nearly burning her face off with a flamethrower installed right into his armor. After Carolina breaks free from his grasp she finally realizes who Sharkface is and proceeds to attack. She manages to knock him down onto a frozen lake but Sharkface cracks it open, causing him to fall through into a tunnel, though he grabs Carolina with a grappling hook and drags her down as well. As the two slide their way out of the tunnel, Carolina demands Epsilon activate all of her armor enhancements, though the latter shows worry. Although Epsilon helps Carolina use her bubble shield, Adaptive Camouflage, and Speed Boost against Sharkface, the latter still outdoes her. Feeling overwhelmed, Carolina tells Epsilon to run her healing unit but the latter states that it's too much for him to handle, though she refuses to give up. Sharkface then uses his flamethrowers, combined with a self-made explosion via two frag grenades, to propel himself towards Carolina, forcing her to flee.

With the Great Key of Chorus in his possession, Doyle flees towards a large cliff as Felix pursues him. When Felix corners him, Doyle threatens to drop the "sword" down into the chasm below, though Felix doesn't believe he has the courage to do it. As Felix slowly approaches Doyle, demanding that he hand over the sword, Doyle gives in and turns the sword off. However, rather than hand it over to Felix, Doyle tosses the sword high into the air, prompting Felix to lunge for it before it falls down the cliff. As Doyle leaps to the opposite side he spots Tucker, Caboose, Donut, and Lopez approaching and warns them that Felix now has the sword. Upon seeing Felix, the crew fire at him, but the latter takes cover behind his Hardlight Shield and holsters the key onto his thigh. After some quick banter, Felix hitches a ride with Locus when the latter arrives in a Falcon and the two make their escape. Doyle worries over what the pirates will do now that they have the sword but Tucker explains to him that the sword will be useless to the pirates since Doyle is still alive. When Caboose questions Epsilon's whereabouts, Epsilon is shown sitting on Carolina's chest, both being revealed to have survived the fall. He says to himself "She is going to be so pissed off when she wakes up."

Inside the Armonia hospital, Donut brings Doc up to speed on the events that have happened on Chorus since his disappearance, specifying Felix's betrayal, the truce between the Federal Army and New Republic, and their current plans to contact Earth of Charon Industries' involvement in the Chorus Civil War. Despite this, Doc becomes furious at the fact that nobody questioned his absence between now and then and grows maniacal like Omega. Upon hearing the sudden change in his tone of voice, Dr. Grey quickly displays interest in Doc's split personality and attempts to conduct electroshock therapy on him, prompting the latter to flee. After Grey and Donut chase after him, Carolina informs Epsilon that they need to talk. Elsewhere, the other Reds and Blues minus Wash attempt to get Palomo and a Fed to socialize peacefully, though the two continue to show acrimony towards each other. Because of this, the crew allow the two to leave. Grif then suggests that they should lie to both Doyle and Kimball by specifying that the other wants to apologize over a dinner, but the others disagree. Sarge then indicates that they must find a neutral party to do the job, just as Doc passes by while being chased by Dr. Grey and Donut.

Meanwhile, at the city limits, Carolina questions Epsilon about his sudden disappearance during her fight with Sharkface. Epsilon tries to avoid the question at first but Carolina demands an answer from him. In response, Epsilon explains that although he is not failing, he has his limits and cannot run multiple armor enhancements by himself, due to the fact that he is only an A.I. fragment. While Carolina apologizes to Epsilon for pushing him too far, she acknowledges that his inability to run multiple enhancements can't be used as an excuse, as they must use any advantage they can in order to defeat the Space Pirates. Because of this, Epsilon warns Carolina not to follow in the Meta's footsteps, as his ambition to gain as much power as possible led to his downfall. Offended and hurt, Carolina reveals to Epsilon that she saw her fellow Freelancers die while inside the portal at the Jungle Temple. In addition, she also saw the Blood Gulch Crew die soon after, and fearfully states that she doesn't want to lose another family. Doyle soon appears and consoles Carolina, stating that he knows what it's like to be afraid. He then states that "Courage is not the absence of fear. It is acting in spite of it." though incorrectly states that the quote is from William Shakespeare (The quote is actually from Mark Twain). Despite Doyle's mistake, Epsilon and Carolina acknowledge their liking to the quote. Church hopes that the Space Pirates are having problems too.

At Armonia, Doc agrees to help the Reds and Blues get Kimball and Doyle to cooperate, in an attempt to recuperate their relationship, forgiving them for not noticing his absence. Wash soon approaches the crew and warns them that the Federal Army is establishing a perimeter around the city after the New Republic threatened to leave. In order to prevent another civil war from breaking out between the two armies, the crew help Doc hold an "honest and down-to-earth" counseling session between Kimball and Doyle inside the war room. When the two leaders are reluctant to participate, however, Doc gives them an example of how the session will play out by role-playing with Grif; Doc as Grif and Grif vice versa. However, Doc, in the personality of O'Malley, insults Grif and his family while role-playing as him, saddening Grif and Sarge thinking it's great.

Meanwhile, Price, stationed inside the Tartarus, questions Locus on why he wishes to know more about the Meta, in which Locus replies that any information about their enemy is beneficial to their success. After Price agrees to help him, Locus asks how the Meta was killed by the Reds and Blues. Price explains that while Maine withstood many lethal injuries that would normally kill a man, the puncture wounds in his armor, caused by Tucker's sword, caused him to die of asphyxiation by drowning. Already aware of this, Locus questions why the Meta was unable to prevent his own demise despite having an advantage, in which Price explains that the Blood Gulch Crew had something the Freelancers never did: complete faith in one another. Although, Price notes that if the Reds and Blues fought the Meta while he still possessed his A.I., events could've played out differently. When Locus asks why, Price reminds him that Agent Maine and the Meta are two different psyches, in which the Meta is the result of Sigma manipulating Maine. He then explains that after the A.I. fragments were destroyed the Meta psyche was too, leaving Maine a broken shell of a man who uncontrollably continued to follow Sigma's goal. After Locus asks how Maine was before he became the Meta, Price describes that Maine was a brute who displayed no qualms in following orders because he knew that, at his core, he was a soldier whose actions served the greater good. Locus then argues that a soldier's actions should be nothing more than a result of following orders, though Price states that those traits make one a slave. When Locus asks if the Meta was at his best when controlled by Sigma during his goal of perfection, Price rectifies him saying that the Meta's goal was to be human, not to be the perfect weapon.

Upon hearing this, Locus asks no more questions. Price then notes Locus' change in behavior after his trip through the gateway at the Jungle Temple, with Price noting that the temple shows those who enter the gateway their greatest fear, though Locus denies this. As Price continues to pry he asks Locus if he wants to know what Felix is afraid of most, catching Locus off-guard. Suddenly, Felix appears and informs Locus that he is needed with the rest of the team, prompting Locus to join his comrades. Felix then approaches the Counselor, sarcastically complementing his work on Sharkface. Felix then intentionally wonders what will happen if Sharkface found out the Counselor used to work for Project Freelancer before logging off.

As a firefight ensues between the Space Pirates and Chorus armies throughout the streets of Armonia, the Reds and Blues contemplate on what they should do to survive the attack. While Sarge suggests they fight back, Epsilon proposes another idea, stating that the city is a deathtrap, but not for them. Meanwhile, at the Armonia hospital, the Space Pirates attack and kill two Feds who were attempting to protect Dr. Grey. Fortunately, the attacking pirates are taken out by Palomo, Smith, Bitters and Jensen who inform Grey that they are evacuating the capital. Surprised, Grey asks why, in which the four explain that because the pirates discharged all of their men inside the city, they will be able to take them all out by detonating the city's nuclear reactor.

In the streets, Doyle and the Reds and Blues reach the Armory and contact Carolina of their progress. Carolina, alongside Epsilon, Wash and Kimball, informs them to board the Pelican stationed there while they make their way to the reactor's manual overload through the underground maintenance tunnels. As they move forward they suddenly encounter Sharkface. Running out of time, Carolina agrees to stay and face him alone only if he allows Wash and Kimball to leave safely. Sharkface, in response, complies to this but states that he'll come after Wash when he kills Carolina.

At the Armory, the Reds and Blues gather weapons and supplies to bring onto the Pelican, with Doc, in the personality of O'Malley, arming himself with a rocket launcher. Donut then alerts them of more mercenaries approaching, prompting Sarge to radio Grif on the status of the Pelican. Grif tells Sarge that he is having trouble getting the aircraft's engine to start and soon realizes that Lopez is trapped inside, who yells at Grif in anger because he was repairing the Pelican when Grif came. After Grif tells the others of this, Freckles alerts the group that the pirates are getting closer, prompting everyone to hide. The pirates then arrive to the Armory, and unfortunately, the Red's and Blue's are quickly discovered because of their poor hiding spots. As the mercs prepare to open fire, Doc/O'Malley eliminates them with his rocket launcher. With more pirates approaching, the crew decide to hold down the Armory until Lopez is released from the Pelican.

The Space Pirates continue firing upon the armory in order to get to Tucker and Doyle, but are unable to get inside due to the Blood Gulch Crew's combined firepower. As the crew fend off the pirates, Simmons informs them that he has successfully removed Lopez from the Pelican, prompting them to retreat to the garage to board the ship. However, Doyle decides to stay behind, explaining that the pirates will simply follow them once they leave on the Pelican, destroying their chances of killing them all in the city. So, in order to keep the mercenaries inside Armonia, Doyle flees on a Mongoose, inciting the pirates to chase after him and letting the Reds and Blues escape.

As the Reds and Blues fly away on the Pelican in order to get Tucker to safety, the latter informs Wash and Kimball of Doyle’s actions. Angered, Wash and Kimball contact Doyle and question his plan. Doyle tells them that he is the only thing keeping Charon inside the city and asks how long it will take for them to reach the reactor. Wash, in response, tells Doyle that he is unsure as Epsilon is not with them to guide them through the tunnels. Because of this, Doyle decides to go and set off the reactor himself, telling the two that he will meet them at the extraction point once he is done. Wash and Kimball then move towards the surface to assist Carolina.

Meanwhile, Carolina and Sharkface brawl inside the monorail. However, unlike their last battle, Carolina is shown to be more focused, dodging several of Sharkface's attacks and even managing to outmatch him. When Sharkface attempts to attack her with his grappling hook, Carolina dodges it, with the hook attaching to a door. As the monorail reaches the LZ, Carolina pulls the hook's wire and launches the door it's connected to straight at Sharkface, throwing him out onto the street below. After Carolina jumps out of the monorail, she and Sharkface are left exhausted. As Wash and Kimball arrive to aid Carolina, the latter tells Sharkface that he has lost. Sharkface, however, refuses to accept this and declares that as long as he is alive he will continue to hunt them down until they're all dead. As a result, Wash and Kimball swiftly execute Sharkface.

Wash then contacts the Reds and informs them that they have made it to the extraction point. The Reds, in response, inform Wash that they have safely dropped off the Blues and are heading to the LZ now. Kimball then radios Doyle and asks him if he's ready, in which the latter states that he is almost finished. Suddenly, a space pirate corners Doyle and fires at him, but Doyle ducks and manages to kill the pirate. Unfortunately, the mercenary's bullets destroy the reactor controls, making it impossible for Doyle to overload the reactor remotely. With no other option, Doyle equips himself with a Sticky Detonator left behind by the dead pirate and informs Kimball, Wash, and Carolina that he will have to detonate the reactor's core himself. Concerned, Kimball volunteers to help Doyle, but Doyle denies her request, finalizing his decision to risk his own life in order to protect them, just like she would have done. As the Reds arrive at the extraction point, Kimball, distressed, warns Doyle that if Felix isn't in the city he will be placing the sword right into his hands. Doyle, in response, expresses his confidence that she will be able to stop Felix if he isn't. As Carolina and Wash get Kimball inside the ship, Doyle reaches the reactor's core and sticks a sticky grenade onto it, just as the pirates make their way towards him. With the grenade set to explode in less than a minute, Doyle demands that Kimball and the others leave the city quickly, though Kimball pleads for Doyle to stop. Doyle then says his final goodbyes to Kimball by telling her that Chorus still needs her, and to make sure that the people she leaves behind will be able to carry on without her, before signing off. As Kimball finally boards the Pelican, she and the others fly out of the city.

After successfully deploying Carolina’s bubble shield, and in turn saving the Reds, Wash and Kimball from the nuclear blast, Epsilon briefly cycles through his memories of Theta, Delta, and Omega, before awakening at Crash Site Bravo in front of a relieved Blood Gulch Crew. Carolina informs Epsilon that the Feds and Rebels are scattered across the planet as a result of Armonia's destruction, with several soldiers mourning at Bravo. She then expresses her concern for Kimball, as the Feds blame her for Doyle’s death. Wash then approaches the two and explains to Epsilon that Felix and Locus survived the nuclear blast.

Meanwhile, it is revealed that Locus and Felix have regrouped at the Jungle Temple, with the Great Key now fully functional for Felix. As the two approach Santa in preparation to activate the Purge, Felix asks him if they will be safe from the Purge’s effects. Santa, drearily, assures him that those residing inside the Temple of the Purge will be spared. While Felix exhibits his joy of the news Locus expresses his concern about the safety of the space pirates guarding the communication temple. Felix tries to persuade Locus to simply let them die, but Locus insinuates his disagreement, saying that some of them are former partners. In response, Felix explains that their comrades’ trust in them does not allow them immunity and states that survival is a privilege that must be earned. A space pirate then radios the two and informs them that Control would like to speak to them about the loss of Armonia’s artifacts. Felix decides to go speak with the Chairman himself and wonders if the latter would be interested in an alien A.I. After Felix leaves, Santa expresses his growing skepticism of him actually being a true warrior. Locus then asks Santa on what Felix saw after he passed through the portal and what he is afraid of. Santa tells Locus that the answer is obvious, before disappearing to prepare for the Purge.

Back at Bravo, the Blood Gulch Crew finalize their plan. Knowing that Locus will be with Felix, Carolina and Wash agree to go on “defense” (preventing Felix and Locus from activating The Purge) while the Reds and Blues go on “offense” (They along with the Chorus armies assaulting the Communications Temple). However, the Reds and Doc bring up the fact that they are low on ammo and the armies are still not working together, in which Kimball, who approaches the crew, suggests that she talk to them. While concerned, the crew allow her to speak with the armies.

Felix and Locus arrive at the Purge but are suddenly shocked to discover Wash, Epsilon, and Carolina standing in their path. Wash attempts to talk them out of activating the temple as it will kill both the people of Chorus as well as their own men. Though Locus ponders over this, Felix convinces him that they must follow their orders.

Meanwhile, the rest of the space pirates are shown guarding the Communication Temple, until one of them spots Kimball nearby. Kimball quickly kills the pirate with an alien rifle and is soon accompanied by numerous Feds and Rebels, all armed with alien weaponry. As the pirates open fire, Kimball orders the combined armies to attack, which they proudly do. Finally united as one, the Feds and Rebels quickly lay waste to several of the remaining pirates, with the Reds and Blues, armed with an alien tank, assisting in the assault. Now under heavy fire, the pirates send a distress call to Felix, Locus, and the Counselor, who is aboard the Tartarus, explaining that the armies have obtained several alien armaments.

Running out of time, Felix and Locus fire at Wash and Carolina, who proceed to take cover. When Locus manages to disarm Carolina, Wash, in turn, lobs a grenade into the air to distract Locus. When Locus shoots the grenade, Wash shoots and disables Locus' Sniper rifle, forcing the two mercs to restrategize. As a result, the two charge towards the Freelancers, with Felix using his Hardlight Shield as cover while Locus jumps onto a hovering platform, in order to reach the temple's back entrance. Using her grappling hook, Carolina pursues Locus and the two engage in combat. All the while, Wash engages Felix, with Felix attempting to kill Wash with his daggers. After Wash dodges Felix's attacks, however, Felix pulls out his sword.

Meanwhile, on board the Tartarus, the Counselor suggests to the pirates on the bridge that they abandon the mission. Informed by Felix that Price might turn on them, the Space Pirate partnered with Price attempts to kill him as a result but notices that his pistol is missing. Price, having stolen the latter's pistol, kills the merc and forces the pilot to fly the ship away from Chorus. Back at the Purge, Felix fights off Wash and rushes towards the temple. After Wash warns Carolina, the latter catches Felix with her grappling hook and proceeds to reel him in. However, as Felix is dragged off the side of the pathway he grabs Wash and threatens to drop the latter if Carolina drops him. As a result, Carolina pulls the two onto the bottom of the hovering platform she and Locus are on.

The battle between the Chorus armies and space pirates rages on at the Communication Temple, with the former army beginning to overwhelm the latter. As the pirates are forced to fall back, Kimball and the Reds and Blues move forward towards the entrance of the temple. Tucker soon joins them, accompanied with Wash, Epsilon and Carolina, who inform the crew of the destruction of the Purge as well as the deaths of Felix and Locus. Epsilon then notifies them of a teleporter inside the temple that leads to the control room. Just then, a Mantis operated by the space pirates begins killing several Chorus soldiers. Because of this, Carolina gives Epsilon to Tucker and allows the Reds and Blues to go to the control room while she and Wash stay and fight outside with the Chorus armies. After the Reds and Blues pass through the teleporter they arrive at the control room and are greeted by Santa. As Santa begins preparing the temple for activation, he then mentions that there may be a small problem. When Tucker asks Santa what that may be, he disappears in time for the crew to discover Felix flying towards them in a Falcon. As the crew scatter, the Falcon crashes down at the control room. Felix, along with an exhausted Locus, readies himself to fight the Reds and Blues. As he tries to force Locus to join him, the latter explains that, with the Tartarus destroyed and their numbers low, their mission has failed. However, Felix furiously tells him that he is not doing this for the mission or Hargrove but for himself and leaves to find the crew.

Outside the temple, Wash is contacted by Tucker, who informs him that Felix and Locus are alive and are inside the control room. Being unable to help them, Wash tells Tucker that he and the others will have to deal with them alone, but expresses his confidence that they will come out successful, with the exception of Doc disagreeing. As Felix searches for the crew, Locus struggles to keep up with him and soon collapses. Santa reveals himself to him and asks why he is doing what he’s doing, but Locus repeatedly replies that he doesn’t know. When Santa asks Locus if he would like to know something Locus requests to know what Felix is afraid of. Santa, in response, tells Locus that Felix is afraid of him. Meanwhile, Felix calls out to Tucker in fury until the latter confronts him. After a brief Sword fight, Felix knocks Tucker to the ground, until the other Reds and Blues intervene and attack Felix, quickly overpowering him. When Felix becomes surrounded, Locus approaches the crew, but does not harm them. Instead he gives up his weapon and tells Felix that he is not a soldier, but a monster like him. Felix pleads Locus to rethink what he’s doing but Locus disregards him. As a result, Felix attacks everyone but quickly gets a sticky grenade caught on his hardlight shield, fired by Simmons. Tucker then throws a frag grenade towards Felix, which blasts him over the edge of the control room and sends him plummeting to his death.

The Chairman releases numerous Mantis droids around the Comms. Temple and begins annihilating both Chorus troopers and Space Pirates left and right, saying if he is going down then he is taking them all with him. With Wash, Carolina, Kimball, and the rest of the Feds and Rebels forced to take cover, the Reds and Blues contemplate a way to shut down the robots. Epsilon states that they must reach the Staff of Charon in order to override the Mantises' controls. So, in order to get inside the ship, the crew board Locus and Felix's damaged Falcon and fly it towards the Staff of Charon. After successfully getting inside, the crew search around the ship's engine room for the override controls, and soon discover F.I.L.S.S. F.I.L.S.S. explains that she was recovered by Hargrove and was illegally reassigned to work under him. When Epsilon pleads for her to shut down the Mantises, F.I.L.S.S., despite the action violating Hargrove's orders, gladly agrees to help, due to her deep dislike for the Chairman. Unfortunately, Hargrove stops F.I.L.S.S. from deactivating the droids and sends his own forces to attack the crew, prompting them to flee. As Hargrove's forces corner the crew, F.I.L.S.S. uses the ship's blast doors to protect them. She then directs the Reds and Blues to the location of the terminal containing the override controls: the Chairman's trophy room.

As casualties build up outside the temple, the Reds and Blues hurry to the Chairman's trophy room. Upon reaching it, Tucker and Epsilon enter the room while the other Reds and Blues stand guard outside. Epsilon quickly becomes angered upon seeing Tex's cracked visor and orders F.I.L.S.S. to bring up the terminal to the Mantis controls, which she does. As Epsilon gets to work on overriding the controls, Hargrove, speaking to the two from the ship's bridge, admonishes that the crew will not leave the ship alive. Tucker, however, remains unfazed and shuts down the Mantises after Epsilon finishes overriding the controls. After the Mantises all shut down outside, the Feds and Rebels rejoice.

Back in the trophy room, the Reds and Blues rush in and seal themselves inside as Hargrove's forces close in. Epsilon contacts Carolina demanding an extraction, in which Carolina states that they will fire up a Pelican to pick them up in a few minutes. Unfortunately, Hargrove's forces immediately begin welding through the door, shortening the crew's time to make their escape. As a result, the Reds and Blues bravely prepare themselves for the oncoming attack, with Grif arming himself with his Brute shot, Lopez, Doc, and Donut barricading the door, and Simmons attempting to start up the Monitor. Tucker, concerned, asks Epsilon if they can win, but the latter explains that they still need one more piece. Having discovered it while overriding the Mantis controls, Epsilon has F.I.L.S.S. release the Meta's modified suit and asks Tucker to put it on. After Tucker dons the suit, he changes the color to his regular aqua. Hargove's forces prepare to breach into the room with blowtorches. In response, the Blood Gulch Crew say their goodbyes to one another and ready themselves for the impending attack. Epsilon then states that out of everyone he's met he hates the crew the least, in which Tucker responds saying that he'll see him on the other side. Suddenly, time slows down, with Epsilon assuring that he will not make it back. Epsilon-Delta soon appears and asks Epsilon if he really wants to go through with this, in which Epsilon ensures that he does. Epsilon then begins a recording and says his final goodbyes to the Reds and Blues before dematerializing for good: