Seasons & episodes

Acting DI Samantha Nixon is on a single-minded mission to find the Sun Hill serial killer when a young woman called Vicki Casson goes missing. The latest clue is a website found by Simon Kitson which shows photographs of the body of one of the previous victims, posted by an anonymous user calling himself ""The Baptist"". When Nixon's teenage daughter Abigail is brought into the station drunk, will Nixon recognise this cry for help from her desperately lonely daughter? When a newborn baby is abducted from St Hugh's hospital, DS Debbie McAllister takes on the case, despite being on maternity leave. PC Kerry Young demands an answer from her fiance, PC Luke Ashton, about his true feelings.

The police are on high alert when a nanny reports that her car has been stolen by carjackers with the kids she was minding still inside. When a bank manager turns up at St Hughs with mysterious injuries, an investigation leads to a sordid S&M dungeon in the basement of a tattoo parlour, and MIT's new main suspect for the serial killings - Shane Pellow. DC Eva Sharpe manages to stop an ex-policeman from running ghoulish serial killer tours in Sun Hill, and she and Okaro go undercover to catch the carjackers who pull out a gun but are soon captured. The rivalry between PCs Des Taviner and Gemma Osborne reaches a new high when Osborne plays a recording of Taviner over the station loudspeakers - a trick Taviner himself had once played on Vicky Hagen. A distraught Acting DI Nixon finds her daughter has run away from home after an argument.

A distraught Acting DI Samantha Nixon searches desperately for her missing daughter, Abi, fearing she may be the next victim of the serial killer. TDC Brandon Kane's ex-wife leaves him with their two kids while she tends to her injured mother. Ordered by Supt. Okaro to assist Nixon in the search for her daughter, Kane leaves his unruly children in the care of CSU's Jim Carver and June Ackland. PC Reg Hollis searches for a Vietnamese pot-bellied pig stolen from a city farm. Abi Nixon turns up at Sun Hill, demanding to know who her father is. As PC Des Taviner and PC Gemma Osborne race their police cars across London to reach a call first, their radio traffic and then their cars are intercepted by a furious Supt. Okaro and Insp. Gina Gold, fresh from a meeting at New Scotland Yard.

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Insp. Gina Gold and PC Gemma Osbourne visit a local school to investigate reports of drug dealing. Osbourne runs into a teacher friend of hers, Caroline Cotton, who passes on a pornographic tape she conficated from a pupil. Osbourne passes the tape on to CID, but when Caroline arrives at the station, Osbourne decides to take DS Phil Hunter down a peg or two by setting him up with her lesbian friend. Sgt. June Ackland investigates a possibly racial assault on pub landlady Aisha Danvers, and sends PCs Jim Carver and Cathy Bradford undercover in the pub, an assignment that raises a few eyebrows given Carver's history of alcoholism. After a failed obbo on a possible gun buy at the pub, Bradford and Ackland suspect Carver has started drinking again. A furious Carver sets out to prove otherwise, and discovers that Danvers has actually set up her own drug and guns racket on the Larkmead. Osbourne's plan backfires when DS Hunter turns up the next day like the cat that got the cream, and Robbie

DS Debbie McAllister's post-natal depression clouds her judgement when a father tries to protect his schizophrenic son. Her attitude alarms DCI Jack Meadows who enlists Eva Sharpe to help him convince Debbie to keep her baby. PC Nick Klein, recently released from hospital, and PC Ruby Buxton are asked by a local shopkeeper to get a drug dealer away from his corner. But while Ruby talks to the shop owner, Nick takes the chance to swap his hospital medication for cocaine. Convinced their chief suspect Shane Pellow is the serial killer, DCs Duncan Lennox and Danny Glaze decide to check the victims' phone records to see if there is any connection. They discover that at least two of the victims had placed ""Lonely Hearts"" ads in the local paper. Meanwhile Pellow's girlfriend, having found a bracelet belonging to one of the murdered girls, tells Cass Rickman she also thinks Shane is the killer. Little does TDC Brandon Kane know that while his seemingly sympathetic partner PC Cathy Bradford gi

PCs Des Taviner and Gemma Osbourne complain about being taken off traffic duties, but Insp. Gina Gold assures them that after their dangerous car race, had they been civilians, they would now be serving time. But the Super has an even more humiliating plan in mind. TDC Kane and PC Cathy Bradford take over the investigation from Osbourne and Taviner when kids vandalise a local shop, but the old lady over the road who sees everything, takes them down an unexpected path - a path that may change her life. When Kane's ex-wife Tanya makes another appearance at the station, Cathy Bradford does her best to make life difficult. On quizzing Tanya's friend Ros, Cathy is surprised to find out about their relationship. Now that the manipulative Cathy sees Tanya as an easy target, will she let anything stand in her way? Debbie McAllister is feeling alone and unsupported, but DCI Jack Meadow's visit to the hospital inspires her to make a big decision about her career. Bonding with her new baby howeve

PC Cass Rickman is abducted and taken to a darkened warehouse. When her blindfold is removed, she finally discovers who the Sun Hill killer is - but will her colleagues find her before it's too late? [Source: Radio Times]

When Cass Rickman's handbag is found in the street, the high from last night's party quickly dissipates. Now it's not just Nick Klein who worries for her safety. Then a body is found in the Thames and everyone holds their breath - but it's not Cass. Interviews with PCs Klein, Young and Best and Robbie Cryer, reveal to DCI Meadows and Insp Gold that three men have an axe to grind with Cass - Simon Kitson, Shane Pellow and Martin Porter. Beside himself with worry, Nick Klein is ordered home, but frantic to find Cass, he wanders the shoreline. Meanwhile PCs Hollis and Taviner find Kitson and Pellow fighting, Pellow saying he was attacked for no reason. Kitson says he was in love with Cass, and Pellow killed her because she had talked his girlfriend into leaving him. Both are taken back to the station for questioning. Tragically, Klein finds Cass's body lying by the river - Sun Hill's serial killer has taken one of their own. Nick is inconsolable, but when Cass's mother arrives he gives he

The station is still in shock after Cass' murder. Simon Kitson is charged for the serial killing and forensics from his car make his future look grim. Simon commits suicide after pressure from Nick Klein and a visit from his obsessive sister. Nick looks satisfied as the alarm from custody rings through the building. Luke tells Craig that Carl is HIV positive and advises him to go for a test. Ruby and Gary embark on an undercover operation at a department store to try and prevent a predicted armed robbery. Gary is furious to be placed as an elf in Santa's grotto. Gina deals with a boy (Tommy) who has been accused of causing unnecessary injuries during a boxing match. Tommy turns out to be innocent and he asks Gina to find his real Mum (he was adopted). His Mum (Marilyn) turns out to be a cousin of one of Gina's old friends. Marilyn says she wants nothing to do with her son - within earshot of a devastated Tommy. Gina obviously has bad conections with Marilyn - but what has happened in t

Simon Kitson is found dead in his cell leaving PC Nick Klein with an attack of the guilts, but when Simon's distraught sister appears at Cass Rickman's funeral, Nick sees red. The Sun Hill team attends the funeral, but Luke is worried when Kerry doesn't want to go. Supt Gina Gold plants PCs Gary Best and Ruby Buxton undercover in a department store and PC Gemma Osbourne in a bar, in a determined effort to bring down her old adversary Marilyn Costello. What has her really riled however, is Marilyn's treatment of her son Tommy, who she adopted out years before. When Melanie, one of the hostesses at the bar, starts to look at Gemma more closely, she thinks her cover's been blown, but it seems Melanie has other things on her mind. Meanwhile Craig Gilmore tells his HIV-positive partner Carl that the relationship is over. PC Kerry Young tries on a wedding dress while on duty at the department store with Buxton, and a chase with a shoplifter gets her into a nasty situation. Sensing that Gina

Insp. Gina Gold is in Supt. Adam Okaro's bad books for ruining the operation at the department store. PC Gemma Osbourne sleeps with Melanie from Marilyn Costello's club where she is working undercover, unaware that she is the insider at the store. Sgt. Craig Gilmore steps in when the store wants PC Kerry Young to pay for the ruined wedding dress, and Young finally breaks down over Cass Rickman's death. Under the pretence of helping her escape the country, Osbourne brings Melanie into Sun Hill, where Melanie makes a statement about Marilyn. The police raid the club, but SO19 are forced to take action when Marilyn takes her son Tommy hostage at gunpoint. PC Cathy Bradford assumes the worst when she is stabbed in the arm with an hypodermic needle. An HIV test proves negative, but she tells a sympathetic TDC Brandon Kane a different story.

It is the countdown to PC Luke Ashton and PC Kerry Young's big day, but all is not well. Sun Hill's big-time villain Ron Gregory has DS Hunter exactly where he wants him, but at what cost to Phil? DC Duncan Lennox asks Acting DI Samantha Nixon for help with the Sun Hill serial killer. [Source: Radio Times]

PC Cathy Bradford discovers a case of child abuse involves the son of her partner TDC Brandon Kane, and uses blackmail to force a teacher to push the case forward. But her plan goes awry when Brandon and his ex-wife Tanya agree to call a truce. PC Kerry Young is handing out invites to her wedding, but her ex-fiancé doesn't take it too well. Was he always this violent? Kerry, however, is distracted with plans for the staff Christmas party which Robbie Cryer seems to be organising single-handedly, and the Super offers a hundred pound prize for the best karaoke singer. Simon Kitson comes to Cass Rickman's rescue when she gets into a tussle with suspected serial killer Shane Pellow, so as a thank you she invites him to the party. Later, after he sends a text message, she pulls out of the karaoke trio to meet him at a bar instead.

DS Phil Hunter's devious ways are catching up with him - DCI Meadows and Supt Okaro execute raids on known fences in the area before Hunter has time to warn Ron Gregory, the local crime boss who pays him off. Hunter's attractive, long-suffering wife attracts Gregory's attention, and instead of the payback he was expecting, Hunter has to deal with an unusual request to keep his head off the chopping block. An alibi from a prostitute takes Simon Kitson out of suspicion as the serial killer, leaving Acting DI Samantha Nixon to follow some of her theories. When DC Lennox can't get anything further out of Simon's sister Pat, Samantha takes over, and is surprised by what she discovers. But is her curiosity leading her into a dangerous situation? Luke Ashton is persuaded to celebrate his ""last night of freedom"" and Craig Gilmore reluctantly joins the boys for a drink, while Robbie, Gina and Gemma surprise Kerry at home - booze in hand and ready for fun. Sgt Boyden's plans to leave Luke trouse

DI Samantha Nixon is on the trail of the serial killer and on the phone to DC Duncan Lennox when it goes dead. Duncan traces the call, but he and PC Taviner arrive to find only Cass Rickman's neck chain, and Samantha's phone - and her last call was from Pat Kitson... It's Kerry and Luke's wedding day and Inspector Gina Gold is not happy to find the groom in bed with Craig Gilmore. Both Gina and Gilmore want Luke to tell Kerry, but for very different reasons, so with a reception venue in doubt, Gold tries to convince Kerry to postpone the wedding. DS Phil Hunter is in deep, as crime boss Ron Gregory wants to sleep with Hunter's wife and Phil has no way out. What will he do now that the tables have been turned on his philandering ways? Lennox and DC Mickey Webb break into Kitson's house, but find nothing. While from the attic of the house next door, Kitson taunts a bound and blindfolded Nixon as she watches them drive away. Nixon fishes for information, and when prodded by Pat, talks abo

Glaze becomes involved in the case of a paedophile priest who is taking refuge at a local church, which is being besieged by local parishioners. Best is called to a domestic at his sister Karen's house. Hunter finds himself in a trap when he is forced to prostitute his wife to a local gangster. [Source: Radio Times]

Being in the pay of crime boss Ron Gregory is not paying off for DS Phil Hunter. Not only is his wife Cindy caught up in Gregory's dirty tricks, but DCI Meadows and Supt Okaro are onto him as well, and decide to use him to bring Gregory down. Supt. Okaro clashes with the Borough Commander, Jane Fitzwilliam over how to solve the drug problem, and his old friend David Ackroyd's information about Gregory's plans to flood the streets with cheap heroin, costs him his life. Sister Sarah Donohue, the nun who runs the local community centre, and who was also friends with David, is so upset by his death that DC Danny Glaze gives her a more than sympathetic kiss. With the Supt's crackdown on burglaries, ATM robberies are on the increase and Cindy Hunter is mugged. Seeing her lying bashed in a hospital bed, Phil Hunter takes new interest in the robberies, and he and Webb and McAllister set up an operation to catch the culprits. Hunter's fury overtakes him and Webb has to stop him using a baseball

Supt. Adam Okaro issues an order that drug users are not to be arrested by his officers - instead Sun Hill will target the dealers. PC Cathy Bradford is furious at this change in policy when the junkie who stabbed her with a hyperdermic needle walks free. Meanwhile DS Phil Hunter is given a tip off about a 20k drug deal about to take place in Sun Hill. Villain Ron Gregory has a plan. He wants Phil and his fellow officers to intercept this deal so the patch stays clear for Ron's own dealing. But Phil's already on thin ice with his superiors. Will Phil ever get Ron Gregory off his back? PCs Ruby Buxton and Nick Klein are called to a violent domestic in a smart area of town, they are quick to arrest the husband for assault. But is it as simple as it at first appears? DC Danny Glaze is eager to talk to Sister Sarah Donohue after the pair's kiss the previous night, but the nun is in no mood to talk, particularly when her the community centre she runs is in danger of being closed by Ron Greg

Supt Adam Okaro's rumoured controversial approach to drug policy draws the media like flies, so Borough Commander Jane Fitzwilliam calls a press conference to make him toe the company line. PC Cathy Bradford has come to rely on her partner DC Brandon Kane's support, so when her HIV status is revealed, will she tell him the truth? If she plays on his sympathy, she may get him to bed. Suspecting him of having an affair with DS Debbie McAllister, DCI Jack Meadow's wife Laura arrives at the station to give him his marching orders. But even after McAllister explains to her there is nothing going on, Jack decides he's had enough and leaves home anyway. A small boy dies in a drive-by shooting in his neighbourhood, and Supt Okaro decides to walk to his press conference to give himself time to think. Will the press, the police and the community be ready for what he has to say?

Supt. Adam Okaro makes a shock decision to resign after he is forced to toe the line on the drugs issue by the Borough Commander. PC Des Taviner suspects a judge is corrupt when the absence of a key witness sees a court case collapse. PC Cathy Bradford is delighted after spending the night with TDC Brandon Kane, but Kane is indifferent. When an old school friend of PC Ruby Buxton disappears after being robbed, Buxton finds her friend's mother is defensive about her daughter's whereabouts. When the bank mistakenly credits his account, will DC Ken Drummond take the money and run, or notify them of their mistake?

PC Des Taviner is eager to investigate Judge Sinclair, who he suspects is corrupt. DCI Meadows, a friend of the judge, insists he drop it, but asks DC Mickey Webb to keep an eye on the case. Insp. Gold overhears Taviner and Meadows, and encourages Taviner to investigate in secret. TDC Brandon Kane urges PC Cathy Bradford to reveal that she is HIV positive, but Bradford is reluctant as she thinks it could ruin her chances of joining CID. A clairvoyant's glimpse of the future encourages Sgt. June Ackland to reconsider the nature of her relationship with PC Jim Carver.

PC Des Taviner is transferred to CSU, and unsettles the team with his methods and aggressive attitude. Sgt. June Ackland worries about her marriage proposal to PC Jim Carver, and DCI Jack Meadows makes his feelings for DS Debbie McAllister. Roberta Cryer questions an evasive PC Cathy Bradford about her medication - a question Bradford is ill-prepared to answer. DS Phil Hunter is also caught on the wrong foot when DC Mickey Webb's investigation into a corrupt judge could land him in hot water. Attending a domestic at a local house, PC Luke Ashton discovers a love triangle that is not all it appears to be.

The seemingly random drive-by shooting of a young girl at a local bank seems more deliberate when her father is discovered to be an accountant for some local thugs. FDO Roberta Cryer is suspicious about PC Cathy Bradford's HIV lie after Bradford is berated by DS Phil Hunter for putting others at risk. PC Nick Klein attends Simon Kitson's memorial service, but lets his emotions get the better of him when he encounters Pat Kitson there. PC Kerry Young investigates reports of a flasher, and encounters the mysterious but charming new Aussie PC, Cameron Tait.