Casualty (series 21)

Charlie, Comfort, Abs and Guppy are in Cambodia, where Duffy has set up a clinic with her new boyfriend Mike, a former surgeon. Somnang, a doctor whose sister works at the clinic, has gone to Holby on an exchange. A man, Thomas, is brought in by his neighbour Liz. It transpires he has a gastric band that has burst, but has Liz sent away before she can find out. A teenager, Kevin, takes an overdose of prescription medication so his ex-girlfriend Jade will have to take him to hospital. The group in Cambodia meet a young woman, Voleak, who was infected with HIV and is worried of being shamed. She thinks they can cure her but they are distracted when Chad, a boy who had hassled Abs and Guppy earlier, falls out of a tree. Charlie is suspicious of Mike when he refuses to help. Harry directs Guppy over the phone to drill a burr hole, but Kevin dies while he is on the phone. Harry is furious when Somnang suggests it was Kevin's time. Voleak wanders off, suicidal. Social worker Maria is looking after a boy named Jason, whose mother Grace turned up drunk at the hospital earlier. Jason is sent on the school business, drive by Liz who is still distracted about Tommy. She drives through a red light at roadworks and causes a crash that overturns the bus.

Guest starring John Bowe, Denise Black and Moya Brady

Charlie, Duffy and Comfort stop Voleak from committing suicide and return her to her family. Abs and Comfort later deliver a baby for Voleak's sister Keng in a remote spot, but Keng dies from a heart condition. Comfort consider adopting the baby but agrees to let Voleak look after her. Josh and Greg call for help with the bus crash and Maggie convinces Harry to let Somnang accompany her. The only serious injuries are Jason, Liz and a girl named Claire. Liz tries to blame Jason for the crash but after Kelsey sets her up with Tommy, who is widowed, she admits the truth, even though it will mean losing her job. Grace knocks Maria down a flight of stairs and steals her purse. Jason reports her to the police and she is arrested. Harry ignores Somnang's suggestion Claire was injured in the back until he shows him mobile phone footage showing she fell on a passenger's knitting needle. Somnang reveals his father was a doctor executed by the Khmer Rouge. Selena asks Nathan about his HIV and learns he was never tested. Charlie calls Sam about Mike and learns he was struck off in 1995. Mike has a stroke, having previously been left unable to operate by ischemic attacks. He and Duffy tell Charlie and Guppy that he helped his mother die when she had Alzheimer's and then turned himself in: He fled the UK after serving four years of his sentence. Charlie and the others arrange for him to go to hospital in Bangkok, promising to look after the clinic in his absence. Charlie tells Diffy he has feelings for Maggie, unaware she is kissing Somnang.

Guest starring John Bowe, Denise Black and Moya Brady

Paramedics Dixie and Cyd have been transferred from another station as part of an amalgamation. A teenage girl with cystic fibrosis, whose mother died of the condition and who lives with her grandparents, takes part in a cage fight. She loses but attacks her opponent afterwards and is impaled on a hook. Dixie and Cyd have to call Maggie to give her morphine. Josh tells them ambulances have been authorised to carry morphine but is worried they don't feel like part of the team so decides to split them up. Selena convinces Nathan to have an HIV test which comes back negative; afterwards, they kiss. Kelsey is annoyed that Ellen has replaced their flat's coffee with decaf so tries to pay her back by spiking a drink with caffeine, only for it to be drunk by Alice, who has an allergy. Alice learns Kelsey never slept with Guppy. A police officer is hit with a cricket bat while pursuing a suspect. Tess learns he is having anxiety attacks and lets him stay in the hospital. A GP, Mark, visits Gemma, an alcoholic with a chronic liver condition. Soon after, her family rush her into hospital. Harry finds signs she gave herself a fatal overdose but her daughter Sheena says she couldn't have injected herself at that point. Mark's receptionist, Jane, tells Harry a number of patients have died after he visited them. Harry tricks Mark into admitting he thinks some patients don't deserve to live and he is arrested for murder.

Guest starring Stephen Moyer, Steve Garti and Tony Caunter

Nathan makes both Harry and Selena clinical lead, having them share the job. Josh insists on sticking with his rota, partnering himself with Dixie. Kelsey is still frustrated at the idea of giving up smoking but changes her mind when she meets a patient who has kept smoking despite having a tracheotomy. A woman, Wendy, whose sister Karenis having a baby for her as a surrogate, worries she won't be a good mother. The two are involved in a car crash, resulting in Karen needing a caesarean. Wendy gets over her fears by looking after her nephew. A man falls from scaffolding after getting drunk at work. He is found by a teenage vandal and Alice gets to the truth of the matter.

Sean Maddox is returning to Holby as a locum registrar and stumbles across a young mother in the street whose baby has stopped breathing. He takes charge when Comfort and Greg turn up but the baby is unable to be revived. Evidence suggests he was suffocated and Charlie realises the boy's older brother accidentally smothered him with a teddy while comforting him. The boy is temporarily taken away by social services pending a police investigation. A phone call reveals Sean and Tina have broken up and she is bringing up their daughter with her new partner. A teenage girl helps her gay friend prepare for his blind date. He meets the man at a night club, where the bouncer realises he isn't eighteen and tries to throw him out, causing him to fall through a glass table. He tries to spin tales but it transpires he is only fourteen. His date leaves disgusted on finding out, and when he turns on his friend, she makes sure his mother knows what happened. Selena puts the staff's backs up by initiating a new drugs regime that sees Sam running back and forth to the pharmacy and refusing to let Guppy having time off for a course. Charlie considers asking Maggie out but changes his mind on learning of her fling with Somnang.

Guest starring Charlie Brooks, Haydon Downing and Rebecca Ryan

A boy, Georges, is run over by a car after collapsing into the road. A pastor, Gabriel, is looking after him. Comfort and Dixie pull the car driver, Kenny, from his burning vehicle and Comfort gets vodka spilt over her. Marta, an HCA at the hospital, reluctantly leaves her young niece, Therese, with two me. Comfort and Dixie are called to the scene and find the men fleeing and Therese with a burnt hand. Comfort suspects she is being abused but Sean, thinking she has been drinking, ignores her. Kenny denies having vodka in his car so Comfort has to have a blood test. He eventually admits he was drinking on learning he will lose his legs. Georges has diabetes, which has gone untreated. Gabriel takes Therese away. Marta explains Gabriel thinks Therese made Georges ill and wants to exorcise her. Sean and Comfort stop him setting her alight and he and his followers are arrested. A wheelchair-bound MS sufferer wants drugs to protect him from HIV after having unprotected sex with a one-night stand. Kelsey refuses since he isn't a high risk. Nathan tries to steal the drugs from him to avoid a scene and inadvertently tips off his girlfriend, who he has been reluctant to be intimate with since she became his carer. Kelsey and Alice get in trouble with Tess after their attempts to match the letters of patients with their conditions result in notes being defaced. Nathan meets with Richard and tells the staff either they or the ED at St James will be closed down.

Nathan brings in two health visitors, Max and Dan, who Tess gives a tour of the department. A stuttering farmer, Joe, has a clash with sisters Mickie and Susie who are looking for their dog on his land. After his own elderly dog dies, he accidentally shoots Mickie in the leg while firing at a fox. Maggie has just learned of Selena's relationship with Nathan and accuses her of getting preferential treatment. They argue while treating Mickie but a palm reading session by Kelsey reveals she has Addison's disease. Joe offers to look after her dog until she recovers. A young man, Andy, comes in with an injured finger. His girlfriend Lucy accepts a lift from a man named Robin but runs off when he knows her name. It transpires he is Andy's ex-boyfriend. Andy hits him and gives him a head injury, ultimately being rejected by both Lucy and Robin. Kelsey accidentally starts a fire in the toilet while smoking. Sean takes Comfort for a picnic. There is a succession of disasters as Comfort breaks a heel, a dog eats most of the food and they get locked out of thecar in the middle of nowhere, but they share a kiss anyway.

Charlie is accompanying Josh in the ambulance for refresher training. They treat an ageing biker who collapsed in the street and later dies in hospital. Josh is being given an award for 20 years service but Dixie thinks he should refuse it as a protest against the way the service treats them. The biker's son and friends are laying a wreath for him in the street when an impatient van driver ploughs into them, badly injuring one of them. Charlie and Josh again help out. A teenage boy with mentally disabled parents gets into a fight. He tells Selena he wants to be put in care but Abs lets a charity volunteer take them away. He later learns the charity doesn't exist and the man is on the sex offenders register. He once again tries to get overly friendly with the boy, who douses him in petrol and sets him alight, killing him. Selena insists social services need to investigate the boy's situation. A disabled woman is told she's being moved to a care home in Milton Keynes and deliberately neglects to take her medication so she is hospitalised. Maggie gets her and her husband talking. Sean tells Comfort he hasn't seen is daughter in six months and is thinking of moving back to Australia to be close to her; she agrees he should go. Guppy tries to ask Cyd out and Kelsey convinces Alice to make up a boyfriend to make him jealous; this backfires on them both as Guppy nervously turns the date into group drinks and invites Alice and her boyfriend along. Charlie not only convinces Josh to accept the award but the rest of the staff to attend the ceremony. The bikers also turn up and give Josh the dead man's motorbike as a thank you.

Selena runs a dummy major incident against Tess' advice, and a lack of clear instructions leads to Maggie and Abs being called in on their day off and Kelsey asking wards to make room for non-existant patients. A factory strike over production being moved abroad and veteran worker George being sacked leads to friction between George's son Mark and David after Mark breaks the strike. A platform workers are standing on collapses on the strikers, leaving both Mark and David injured: David needs surgery on his arm and Mark might be paralysed. George admits he has Parkinsons. A policewoman accidentally pepper sprays her teenage daughter, who has been hiding in the loft with her sister's help after apparently running away from home. It turns out she has also accidentally swallowed rat poison and the mother agrees to give her daughters more attention. Charlie and Tess get Sean and Comfort talking but Comfort refuses to go to Australia with him. Guppy presses ahead with his pretend birthday drinks. On learning Alice is expected to take a boyfriend, Sam sets her up with porter Ben and they get on. Hary gives Guppy a present even though the staff have realised the truth. Nathan interrupts the gathering to reveal Holby ED will be closed.

A lorry driver, Joey, thinks he is bringing contraband cigarettes into the country but has actually been given a cargo of illegal immigrants. He and Sean, who was about to get on the boat, hear the banging and free them. One of the men has a septic leg and later dies in hospital. On learning the refugees all have family in the country they can go to, Joey arranges with Sean and Comfort to smuggle most of them out of the hospital away from the police. Agnes, one of a pair of cleaning ladies, collapses from an ulcer caused by a painkiller addiction. This prompts her and the other lady Matty to admit they're in love. Agnes' daughter Charlotte threatens to cut her out of her grandchildren's lives if she pursues the relationship but Agnes refuses to back down. A traffic warden finds an Elvis impersonator collapsed in his car and calls an ambulance. The car owner then headbutts him after mistakenly thinking he was hiving him a ticket, when in fact he was leaving a note explaining the situation. Trust representative Elspeth offers Harry the position of head of the new ED if he doesn't oppose the merger. He initially refuse but later agrees to talk it over with his family. Josh convinces Comfort to take a chance with Sean and she leaves with him.

Guest starring Ian Rose, Isla Blair and Bridget Hudson

Police officers Oz and Nowell finish their shift, handing over to probationary constable Nickie and her older partner Stan. A group of the off-duty officers go to a strip club.Oz is persuaded to join dancer Gina on stage; she pushes him onto broken glass, causing a melee. Oz and Gina are put in adjacent cubicles at the hospital; he explains he joined the force because his uncle was a police officer but doesn't really get on with his colleagues. He steps in when Nowell tries to threaten Gina into keeping quiet about the incident. Nickie and Stan spot a teenager, Wayne, breaking an ASBO and give chase, unaware his girlfriend Debs is nearby. Nickie hits Wayne, causing him to fall down some stairs. Debs attacks Stan outside the hospital and Nickie arrests her, intending to also confess to using excessive force. Josh is self-conscious about needing glasses, especially when he makes a mistake with medication. A couple with a newborn baby come in; the father has accidentally burnt his arm. The staff look after the baby so they can rest and Selena and Tess realise the baby broke her collarbone during birth. Nathan prepares a press conference to discuss the department closure but Ellen convinces Alice and Kelsey to join her in jumping in a fountain as a publicity stunt. Harry, who had been considering applying to the new ED, commits himself to the department.

A homeless woman, Jackie, is brought into the department and found to have gangrene but leaves without treatment. A homeless girl, Shauna, goes over to see her father Frank, who runs a café, and asks her to come home but he isn't convinced she's clean: She previously stole her sister's savings. A worker at the café, Kath, is treated by Guppy and Abs for a chest infection but can't afford to take time off. Shauna and her friend Annie take drugs, steal a car and crash it into the café, slightly injuring Frank and Kath and trapping Jackie and a boy, Justin. Charlie and Maggie are called to the scene and need to amputate Jackie's leg but she dies during the procedure. Kath's co-worker Paul learns how bad her living situation is and agrees to look after her son Zac while she is treated for pneumonia. Frank agrees to support Shauna after Annie speaks up for her. Nathan gives a radio interview about the closure plan but Harry and Tess are unimpressed. Nathan goes to Elspeth and accepts a job at the new ED. Charlie is planning to take Maggie out but Louis argues with Josh then trips and falls. He claims Josh hit him and Charlie throws Josh out.

A man, Martin, takes his disabled teenage daughter, Megan, into work with him. Megan knocks over a lamp during a tantrum and starts a fire in a shed; Martin is injured going back for her wheelchair. At the hospital, it is discovered he has been handling radioactive material and several staff are quarantined with him until they are cleared. Martin probably only has a few days to live. Megan, left disabled by a tumour on her spine expected to kill her, resolves to look after herself. During preparations for a pantomime, stage assistant Angie gives actress Nikki a hard time; Nikki is dating Angie's brother Ryan, who is the director. Pushy mum Laura has brought her daughter Rosie along. Staging collapses and Nikki is knocked into the orchestra pit. Against Josh's wishes, Dixie calls a second unit for Rosie, who Laura insists has a stomach bug, but Harry finds she has simply been given too many energy drinks. Nikki finds out she is pregnant and Angie lies that Ryan isn't interested. In fact, the pregnancy is ectopic and Ryan tells Angie he wants nothing more to do with her. Ben arranges a date with Alice; Sam tries to sabotage it by claiming Ben is still in quarantine, leading Kelsey to realise he likes her himself. Selena is due to face local MP Stephen Gregory in a radio debate but Nathan tells her the department is doomed and it would be career suicide to support it. Harry takes her place and demolishes Stephen's arguments.

Stephen attends the opening of a new health centre and is bothered by a demonstration led by Ellen and Sam. Afterwards, he meets with a constituent, Dennis, who he failed to get a flat. Dennis cuts himself in front of him, and Stephen falls down stairs while trying to stop him. At the hospital, Harry learns Stephen has heart problems from taking too many indigestion tablets. Nathan has a journalist, Janice, go undercover as an agency nurse to dig up dirt on the hospital. She hampers Charlie talking Dennis off throwing himself from the roof and is exposed but Nathan avoids being associated with her. Stephen decides to stand down to spend more time with his family and he and his wife offer Dennis the use of a flat they own. Stephen later dies of a heart attack. A surfer is brought in by his girlfriend after having blackouts; it transpires he has epilepsy. Abs accuses his girlfriend of only being with him for the prestige. She convinces her boyfriend to retire from the pro circuit and run a surf school, then gives Abs some hash as a present, leaving him and Greg to have to talk their way out of trouble with Tess. Kelsey has been given a final demand and claims she needs £200 to fix her boiler; Maggie lends her the money. Josh spends the day being short with his staff and fails to make things up with Charlie.

The events are told three times from the perspective of Josh, Ellen and Laura. Josh is living alone in a flat. He and Dixie bring in Robbie and his girlfriend Merlene, who crashed their car while she was in labour. He later helps a mother, Marsha, who went into a frozen lake trying to retrieve her dog; her son Ashley later admits he let the dog off the lead on purpose. Ellen has an MRI scan but has to go to work without getting the results. The staff help a man dressed as an elf who collapsed in reception and thinks he is dying. Laura returns with Rosie, who she has coached on what to say. Josh doesn't think she is really ill, but she later has a fit, in fact deliberately caused by Laura. Laura says Rosie's father is dead but Rosie gets a call from him. Merlene won't let Robbie see her, since she was about to leave him. He asks Ellen to ask Merlene for another chance but she fails to pass the message on. Robbie steals the baby; Ellen talks him into handing the child over but he then throws himself out an upper floor window. Laura destroys Rosie's notes, trashes the staff room and runs off with her daughter. Josh tries to stop her but she stabs him in the throat and leaves him bleeding in the back of an ambulance.