PCs Des Taviner and Reg Hollis head off to Southend, telling Sgt Gilmore that the Area Car has mechanical problems, so that Reg can propose to his girlfriend, Helen. Meanwhile Special Constable Terry Knowles and PC Nick Klein have arrested petty thief Derek Daly. As they head back for the station Knowles spots an attractive blonde in a car and persuades Klein to pull her over when she jumps a red light. Confident that he can get her phone number (like his hero Taviner would), Knowles approaches the blonde with a smile. Flirting outrageously he tries to get a date but with little success. When he threatens to do a vehicle check, the girl smiles sweetly, produces a steel-comb and thrusts it into his neck.

Sergeant Craig Gilmore addresses the congregation at Knowles' funeral and mentions the dead man's habit of chatting up girls which causes a bit of a stir. After the service Superintendent Tom Chandler tries to comfort Knowles' mother but is dragged away by her daughter Tina who blames the police for her brother's death. Meanwhile at Sun Hill DS Vik Singh and DCI Jack Meadows are liaising with Jay Ramsay who is planning to direct a reconstruction of the murder for a TV programme. Meadows is angry when the Director comments about Knowles flirting with the murderer before his death. Outside the chapel PC Nick Klein is helping a young woman with a pushchair and is shocked when she introduces herself as Dani Knowles, Knowles' widow. When she asks about Knowles' death, Klein tells her not to believe the press reports. As the drink flows at the wake the tensions rise between arch enemies Taviner and Gilmore resulting in a full-blown punch up.

Despite the discovery of the Saab car used in the murder, progress on the case is slow. The owner is identified as Paul King but when the police break into his flat they find King dead from a gunshot wound. Neighbours remember that a blonde woman was a frequent visitor. Trawling through statements after the TV appeal, DC Danny Glaze notices the name Kathy Milligan. Meanwhile PC Des Taviner is annoyed that CID will not share information on the case with Uniform and decides to do a little detection of his own. He has a hunch that petty thief Derek Smith, who witnessed the murder, knows more than he's letting on. Taviner, PCs Nick Klein and Reg Hollis pump him for information until he reveals that the manager of a local night club, Arty Shanks, was selling a Saab for silly money. Back at Sun Hill Sergeant Craig Gilmore wants to tell CID but Taviner is reluctant and pays Arty a visit. At last there is a breakthrough when, as Glaze researches Milligan on the station computer, Arty names Kin

PCs Dave Quinnan and Polly Page are searching for Shauna Russell, a young woman with Down's Syndrome who has been reported missing by her mother, Annie and sister Natalie. They finally find her in an underground car park but are concerned by her dishevelled state. Despite protests from Annie, her daughter is examined by the police Doctor, Sue Marton. Shauna complains of feeling sick and when gently questioned it soon becomes obvious that she is pregnant. A test confirms this and the Doctor tells DI Alex Cullen that Shauna is probably three or four months gone but is unsure how much of her condition she actually understands. It cannot yet be determined whether she was assaulted or the intercourse was consensual. The news of the pregnancy leaves Annie dumbstruck whilst Natalie is disturbed by the thought that her sister may have been raped. In interview Shauna is reticent but mentions John, a fellow member of a club she attends, whom she describes as rude. However, when Cullen meets John

New PC Cathy Bradford goes in with guns blazing after graves are desecrated, but soon finds herself locking horns with a furious Dave Quinnan.

At her local gym PC Cathy Bradford is concerned that Marti Hunt is being worked too hard by her father Barry Hunt who is also the owner. As she leaves, Bradford agrees to keep an eye out for a petty thief who has been targeting the gym.

Dave refuses to speak to Polly after her revelations regarding Liz. Adding to Dave's misery is the receipt of his divorce papers and Tony's implication that whilst his ex wife's life has moved on, he hasn't. An operation to smash an illegal immigrants ring offers Dave the chance to redeem himself in the eyes of his colleagues.

Polly and Dave pose as a married couple running a hotel, hoping to trap Berisha who imports illegal immigrants. Jim and Reg are chef and waiter respectively whilst immigration agent Petit helps out in the kitchen.

The operation appears to be in jeopardy again when Petit declares that he is going in search of his missing sister. Following a lead from a girl at a cafe, he and Jim visit a pool hall, where Tony made a delivery to earlier, but have no joy with the doormen.

Dave and Polly find their old passion reviving as they settle into their roles as a husband and wife running a hotel. Tony is shocked to see his colleagues getting intimate by virtue of the CCTV camera in their room. Dave makes a shock proposal to Polly – one which could end his career at Sun Hill if her answer goes the wrong way.

Tony questions Dave over his actions, but the ensuing argument results in the pair coming to blows. Dave gives Polly and ultimatum: accept his proposal of marriage, or he will transfer to another station. The sting operation draws to a close as officers raid the hotel, but Berisha appears to have made good his escape.

Des and Reg investigate a disturbance at a local lap-dancing club, Polestar. A waitress has been assaulted and Mark Mansfield is accused but the charges are dropped. Meanwhile Polly and Tony gather complaints of credit card fraud in the area.

Danny and Vik visit a burnt out flat where Vik's theory of racially motivated arson force him to take the law into his own hands. On leaving the estate they pursue a stolen car and discover guns under the seat. It's traced to recently released hard man, Michael Bowker.

Vik attempts to keep a low profile when it appears that he has started a race war following his attack on Jeff Simpson. When he is assigned to investigate the incident he is responsible for, Danny manages to convince Simpson not to lodge a complaint. Jim and June investigate a series of thefts. Mickey and Debbie try to find out who Chandler is dating on the side.

The race war in Sun Hill soon begins to escalate, and Tony finds himself the victim of a petrol bomb attack. Vik and Danny are hot on the trail of a gang of criminals arguing over a stolen car, and after Mickey trails Debbie out of curiosity, she begins to suspect that Kate is sleeping with Chandler, but struggles to find any proof, until a frank admission.

Having agreed another afternoon rendezvous with Kate, Chandler makes his excuses to Conway, and asks him to meet with community leaders in his place. Mickey agrees to attend the meeting in support.

Chandler attempts to rally the troops by appealing to their sense of honor in flushing out Conway's murder. When Mickey and Kate attempt to track down prime suspect Jeff Simpson, they grill Danny over his beating, sustained at the hands of Vik.

Monroe organizes a fund for Conway, and whole Chandler makes a show of his generosity, Des can only complain about being totally sking. With no way of contributing to the pot, Des believes he has hit the big time when he confiscates £200 for a youth.

While reports of disturbances start flooding in, the relief out on the streets find themselves under attack. Gilmore has a hard time containing a vanful of officers desperate to get amongst the conflict and regain some order. As white youths are seen loitering around an Asian owned warehouse, Ackland is taken hostage. As the relief rush to rescue her, Carver bursts in and starts beating up the ringleader, and the two share a passionate kiss. As the team relax with a drink in CID, trouble is only around the corner - with an array of petrol bombs being lobbed at the station. Taviner seizes his chance to get rid of the fake cash, but his disastrous actions lead to the entire station becoming engulfed in flames.

Chandler reads out the names of the dead injured, whilst trying to maintain dignity in the face of the public and the press. Danny convinces himself that if he'd spoken out against Vik's indiscretions, none of this would have happened. He enlists Duncan to track down prime suspect, Jeff Simpson.

As the team hold a respectful minute's silence for those lost in the blaze, Debbie is busy finding evidence against a known safecracker, Peter Grace, after the case against him was lost in the fire. At St. Hugh's Cass and Des hold a bedside vigil for Sam.

Des begins to panic when MIT arrive at the station to investigate the fire, but soon begins to realize they have another prime suspect in mind. Debbie successfully manages to track down an internet fraudster, and later decides to take a computer policing course, but is shocked when Meadows fails to support her in her venture.

New DC Eva Sharpe arrives at Sun Hill and is thrown straight in at the deep end, after she is tasked with tracking a drug dealer on her first day.

Harry Fullerton makes a false confession to the firebombing and is arrested. Knowing that he is completely innocent, as he committed the crime himself, Des tries to convince him to stop playing games – but his harsh words only result in Fullerton falsely confessing to the murder of Derek Conway as well.

Eva and Craig investigate a scam involving stolen giro cheques, and uncover a link to a ring of local prostitutes, run by husband and wife Dean and Chrissie Hendry. Encouraged by Nick, Cass takes an ecstasy tablet whilst off duty, only to be roped into breaking up a fight outside a club.

Nick and Cass struggle to come down after making two arrests whilst still high on ecstasy. As they are called to deal with a case of domestic violence, Cass's ability to handle her social and work lives separately comes under fire, and her state of mind begins to impede her judgement.

Boyden orders Jim and June to investigate a repeat prowler at a woman's house. She's far more receptive to the male officers and June is convinced the woman is crying wolf to have a man around the house.

Two armed robbers get caught red-handed after a bungled robbery – and the confessions come thick and fast... but for what? Detective Superintendent Devlin from the MIT team is astounded at Des' 'good luck' in discovering both the bike that was used in Chief Inspector Conway's killing, and managing to tie Ian Burrows, Simpson's toerag of a acquaintance to it.

An old style big time crook, Frankie Steele, pays a visit to Sun Hill and asks Meadows to scare his youngest son, Toby, away from the crime game ... without letting on it was his own dad who's grassed him up.

Tony organizes a Sun Hill team to play a match against a group of young offenders. He's got his job cut out for him convincing Cass she's their secret star weapon and keeping Matt and Craig from shedding blood on the pitch.

Craig starts the day filing a grievance procedure against Matt after last week's homophobic taunts but June warns him off. She quietly suggests that "There's no better teacher than experience."

DC Ken Drummond turns up for his first day at Sun Hill. Fresh from Barton Street nick, he steps straight off a burger van, and into CID. With tensions rising between Debbie and Eva and Alx doing his utmost to contain it he'll wonder what kind of mad house he's lumbered with. Never mind, a fry up will sort that out.

PC Luke Ashton returns to Sun Hill after three years away. But his first day goes from bad to worse and it soon becomes clear Luke won't be getting any special favors, especially from Gilmore. The new Community Safety Unit opens under the control of June, but will her bad start with Gina hamper the department's progress?

Luke is desperate to prove himself but Gilmore seems determined to hold him back. However, when he goes to investigate a homophobic assault, he takes Luke to accompany him. But does Luke have the attitude need for such a sensitive issue? Later, Gina is furious to hear of their feeble progress so barges in with a more forceful approach – but are her actions too extreme?

Ken and Danny investigate an arson attack on flats occupied by sitting tenants, and discover that a group of foreign internationals are interested in purchasing the property.

Tony steps in to defend Lee Dwyer for accusations of vandalism, when he returns to school and trashes a classroom after being picked on by other members of his class. Des receives a series of text messages threatening to expose his lie, and decides to confront Jeff Simpson over his involvement.

Des's blackmailer starts to put the squeeze on. So after parting with his first installment of cash, he decides the only way out is intimidation or confession. Neither looks particularly good for enhancing his career in the Police Force.

Out on a pub crawl to celebrate new PC's engagement the relief are suddenly overjoyed when Reg's winning line comes up on the lottery. While the syndicate members spend the millions over and over in their heads, Mickey heads off to tell Chandler where he can stick his job.

Lee Dwyer decides to press his very serious allegation against Tony. It's an accusation that sends the team reeling and divides their loyalties when all the evidence points to his guilt. Jim's position at CSU puts him in the awkward position of being appointed Lee's Family Liaison Officer.

When cocky new DS Phil Hunter reports for duty he wastes no time bringing in arrests. He flirts with wives of suspects and doesn't play by any of the rules. He's clocked up as a difficult one to handle but if he's toting up the convictions who's to complain? Even if his probing turns up an unwelcome visitor for Nick and Cass.

Cleared of allegations of child sex abuse, Tony decides he cannot forgive Jim for believing the accusations thrown by Lee Dwyer.

Brandon is forced to attend another incident in which troubled teenager Lee Dwyer has trashed a toy shop causing £2000 of damage. But is there a reason behind his actions? Eva and Danny get conflicting tip-offs about a planned bank robbery and Meadows is unsure which of the pair to believe.

Kerry is less than pleased when she is asked to act as bait to trap a flasher, but the case comes into jeopardy when it is revealed that the suspect could be a vital witness to a shooting.

Danny is tasked with investigating a violent assault. Gina and Meadows clash over the handling of a suspect. Reg and Des are attacked in the Area Car by two of Jeff Simpson's thugs, forcing Des to issue a warning to Simpson which leads to a shock revelation regarding Reg.

Luke and Kerry are assigned to protect a scientist who has received death threats, but soon find themselves in the center of a bomb scare. There are complaints against both Danny and Des - Danny for his investigation into the assault on Tina Pope's bit on the side, and Des for beating up a protestor outside the scientist's research lab.

Debbie informs Meadows of her pregnancy. The team investigate when a spate of robberies are carried out by somebody impersonating June. Luke is called to a domestic, and is surprised to find himself at Gilmore's house, intercepting a row between Gilmore and his boyfriend.

Des becomes concerned when Reg fails to show up for work. He soon receives information that Reg has been kidnapped - but he has no choice but to go it alone, in a fear that sparking involvement in the Sun Hill fire being exposed.

Des is forced to confess to Gina and Meadows that Reg has been kidnapped, and with Jeff Simpson's trial about to begin, he ponders whether or not to confess about his falsified evidence in light of the situation. Danny continues to struggle with the stress of the trial lurking over him, but finds himself stunned when Tina Pope is found murdered on the bank of the Thames.

Debbie investigates a complaint of threatening behavior in which a woman is being harassed by one of her neighbors.

Phil sets up an undercover drugs operation at a local nightclub. Sam becomes the surprise choice for acting detective inspector, in light of Cullen's transfer to MIT.

Tony and Reg are called to investigate bizarre events at a local almshouse. Nick, whilst working undercover with Phil at a nightclub on a drugs operation, takes some cocaine, and finds himself in a state of collapse for work the next day.

Jim and June are tasked with investigating the murder at the almshouse, however, their own personal relationship begins to cloud their judgement over the involvement of their prime suspect.

Meadows demands results from Phil after a raid on the club fails to uncover any vital evidence of drug dealing. Nick's judgement is badly effected when his continued use of cocaine begins to take it's toll.

Phil is determined to salvage the undercover operation at the club, but the situation goes from bad to worse when Nick blows his own cover. Phil confronts him over the CCTV footage of him snorting cocaine, but Nick realizes he is in much deeper water than he first thought when Phil uses it to blackmail him.

Phil discovers that a drugs shipment is due at the club, and decides to go all out to close down the operation once and for all. Another body is found on the bank of the Thames, and Danny begins to panic when one if his informants fails to show up for a meeting.

Chandler is arrested for the raped of Anne Merrick, and in the heat of the moment tries to persuade Debbie to give him an alibi. However, with the clock ticking to prove his innocence, Meadows and Mickey believe they have discovered the final nail in the coffin to secure a conviction.

Brandon and Cathy search for a missing Asian teenage girl, Samina but Brandon soon finds his personal life under question when her parents address their concerns over the investigation to Cathy. Chandler takes some extreme measures to secure an alibi from Debbie.

MIT arrive at Sun Hill to investigate links between the recent set of murders that have occurred in and around the borough. When they decide to throw Sam and her CID team off the case, she is quick to enlist Duncan to help her continue with her own investigation.

Tony and Gary try to locate the missing wife of a man found dead in his flat. However, are they searching for a grieving relative or the prime suspect in a murder case?

Duncan and Sam get a potential lead on the serial killer, when a man comes in to report his neighbor's weird activities. Cathy and Brandon are called to a domestic dispute, and asked to arrest a wayward daughter for the disobedience of her parents.

It is the day of Anne Merrick's funeral and her daughter Jennie is further distressed when some uninvited guests make an appearance.

Kerry becomes concerned when MIT confirm that her ex-fiance Martin Porter is the prime suspect in the serial killer inquiry. Luke is called to deal with a case of criminal damage in an off-license, perpetrated by none other than James Chandler, the superintendent's brother.

Tension flares between Simon Kitson and Nick when Kitson interrupts a night out between him and Cass. Duncan attempts to get Sam appointed to the MIT team as a profiler, but DCI Ross has other ideas.

Debbie is still in a state of shock after being raped by Chandler. But with just weeks to go until the birth of their baby, can she forgive him and start a clean state?

After Chandler turns the gun on himself, Meadows and Debbie emerge in shock from Chandler's office. Tony then takes Debbie to the hospital so she can give birth to her premature baby. Amid all of the chaos, PC Gemma Osbourne arrives for her first fay at Sun Hill, and is immediately sent on the beat with Cass.

As he's the one bearing the brunt of Des's temper, Reg wonders if Des's stress leave helped at all. But for the moment Des's mood does lift when he spots new PC Gemma Osbourne.

Sam is convinced that Baxter is the Sun Hill serial killer, but DS Chiu is sceptical. Gina visits Debbie in the hospital to bring her Chandler's things, while back at the office, Jack and Mickey make up but Debbie is not about to forgive and forget.

The fourth victim of the serial killer is found on the banks of the Thames, just as Peter Baxter predicted. Despite Baxtor's confession and inside knowledge of the case, Sam begins to have serious doubts about his guilt.

The day Kerry and Luke's engagement party dawns with Gilmore still pining over the groom to be. Meanwhile, out on the streets of Sun Hill, there are rumors that a rogue prostitute is robbing her punters.

There's trouble brewing on the Bronte estate, where drug dealers and gangs are running riot and two rival "crews" are fighting for power. June investigates when a Bronte resident reports that a young boy is being used as a drug courier by gang leader Reload, but when Brandon and Cathy investigate further, they discover the boy is only trying to ease the pain of his ailing mother.

Phil uses Nick to stop and search Reload and his pals on the Bronte Estate, and Reload is arrested when he threatens Nick with a machete and a kilo of cocaine is found in the car. As Meadows and Gina argue over how to handle the Bronte situation, the situation escalates when a kidnap attempt is made on Reload's daughter at her school.

As Okara takes charge, one of his first orders is to declare the Bronte Estate a no go zone for his officers, a decision which causes a media uproar. Okaro organizes a meeting with borough officials to discuss long term solutions, the demands Meadows compile useful intelligence on the main players on the Bronte.

Kerry receives a series of mystery calls warning her off marrying Luke. PC Ruby Buxton's first day at work is spent showing Tony around the Bronte Estate where she grew up. Although the gang wars of the past week are all but over, when a prostitute is found badly beaten it is almost certainly the work of Frank Magorian, newly released from prison.

Sam 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".

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 parlor and MIT's new main suspect for the serial killings - Shane Pellow.

A distraught Sam searches desperately for her missing daughter, Abi, fearing she may be the next victim of the serial killer. Brandon's ex wife leaves him with their two kids while she tends to her injured mother. Ordered by Okaro to assist Sam in the search for her daughter, Brandon leaves his unruly children in the care of Jim and June.

Des and Gemma complain about being taken off traffic duties but Gina assures them that after their dangerous car race had there been civilians they would be serving time. But Okaro has an even more humiliating plan in mind.

Gina and Gemma visit a local school to investigate reports of drug dealing. Osbourne runs into teacher friend of hers, Caroline Cotton who passes on a pornographic tape she confiscated from a pupil. Gemma passes the tape onto CID but when Caroline arrives at the station Gemma decides to take Phil down a peg or two by setting him up with her lesbian friend.

Debbie's post natal depression clouds her judgement when a father tries to protect his schizophrenic son. Her attitude alarms Meadows who enlists Eva to help him convince Debbie to keep her baby. Nick, recently released from hospital and Ruby are asked by a local shopkeeper to get a drug dealer away from his corner shop.

Cathy discovers a case of child abuse involves the son of Brandon 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. Kerry is handing out invites to her wedding but her ex-fiance doesn't take it too well.

The "Cop Idol" Christmas party gets into full swing with everyone blissfully unaware Cass is lying unconscious in the boot of a car. Kerry, already distracted by Cass's absence makes a discovery about Gilmore's boyfriend Carl that will shake Craig's world.

When Cass's handbag is found in the street, the high from last nights party quickly dissipates. Now it's not just Nick who worries for her safety. Then a body is found in the Thames and everyone holds there breath - but it's not Cass.

The station is still in shock after Cass's 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 and a visit from his obsessive sister.

Simon Kitson is found dead in his cell leaving Nick with an attack of guilt but when Simon's distraught sister appears at Cass's funeral, Nick sees red. The Sun Hill team attends the funeral but Luke is worried when Kerry doesn't want to go.

Gina is in Okaro's bad books for ruining the operation at the department store. Gemma sleeps with Melanie from Marilyn Costello's club where she is working undercover unaware that she is the insider at the store.

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]