Insp. Monroe has trouble dealing with a gang of boy-racers who are harassing and intimidating an elderly couple. When the old man dies after an altercation with the gang, Monroe is urged by Brownlow to show 'zero tolerance' to the youths. PC Smith gets close to a nurse at the St Hughs Nurses Home while investigating reports of a stalker in the area.

Santini goes on trial at the Old Bailey accused of the murder of Jessica Orton, but tries to talk to CIB and implicate Quinnan and Rawton. A prison guard tells Santini that Sherman's drugs charges are being dropped in favour of conspiracy to murder Santini and Fox, who turns up dead in her hotel room after an apparent suicide. With Ferguson executed and Timpney taken on side by Sherman's heavies, Santini's trial starts falling apart. Hagen is discredited by her Sun Hill colleagues when she lies under oath and breaks down in the witness box after being caught out. With Santini found not guilty, he is warned by his recently released cellmate that he is in grave danger from Sherman's heavies.

Klein and Hagen are called to a stabbing at a shopping centre, where a foreign aid worker has been attacked and left for dead. Initially, suspicion falls on a local youth, Wayne Stevens, who has previous for similar offences and was seen running away from the scene. However, when another witness claims she heard the victim shouting something before she was attacked, the pair find themselves on the trail of a Rwandan war criminal, Colonel Augustus Ngeze, who is wanted for mass genocide and rape by the UN. Klein's personal views begin to cloud his judgement when they fail to obtain any evidence to prove Ngeze's identity, so he sets up a chance meeting with a Rwandan national in an attempt to identify him.

As her friendship with stalker victim Emma Roberts develops, Page is determined to find the stalker and starts to believe that he might be closer than she thought. When a past allegation made against Woods comes to light, Emma decides to press charges. Woods is released on bail, but soon turns up and tries to force his way into her house. He is subsequently arrested again and remanded in custody. Meanwhile, Polly is spooked when she starts receiving nuisance calls and a strange bunch of flowers are delivered to her. Suspecting she may have become the victim of the stalker, she looks to Emma to find comfort, but little does she know that her stalker is much closer to home than she imagined.

Dave Quinnan just stands and watches as a shopkeeper and a young woman are attacked by a gang of thugs at his local corner shop. When he finally turns up at the station, he identifies the leader of the gang as Robbie Gaitskill. Polly Page turns up in tears, and she and the rest of the relief are concerned as Dave seems to be cracking up. The crackheads arrested the previous night identify Quinnan as the policeman who attacked them. As Hagen and Page try to find him, Quinnan goes AWOL and tracks down the woman from the shop, Tricia Martin, and demands she tell him Gaitskill's address. Half the relief turn up on Gaitskill's doorstep, only to find Quinnan sitting in a car outside. Gaitskill is arrested, and Quinnan is told by Supt. Chandler to take his sick leave and seek professional counselling.

PC Jim Carver attends to a drug dealer found badly beaten on the Larkmead Estate, but finds himself in a dilemma when a friend Ossie from his AA group confesses to the crime. DS McAllister follows Carver when he tries to convince his friend to turn himself in, and to his horror, Ossie is arrested shortly after. Carver realises that Ossie had suffered an alcoholic blackout at the time, and that the real beating was committed by a rival drug dealer on the Larkmead. Meanwhile, Uniform contend with the BIC gang, a group of youths harassing local shopkeepers.

PC Ben Hayward breaks down when telling primary school pupils about the death of his sister during an anti-drugs talk. Sgt. Gilmore is not happy, but the teacher thinks Hayward's sensitivity will help the students get the message, and may also help them trust Hayward enough to report a bully. An old friend of his sister's works at the school, and she asks him out, although when he meets her at a gallery opening, Hayward thinks her friends are dealing drugs. PC Klein and Hayward find the bully, who goes by the nickname ""Red"", and has been using two fierce dogs to steal money and mobile phones from schoolkids. They trace the dogs to the flat of drug-addicted prostitute Stacy Dodds, and a subsequent search of her flat uncovers a large stash of heroin. Stacy insists her pimp forced her to deal drugs and have sex with Red, and instead of having the dogs picked up, Hayward and Klein search the pimp's boat, finding more heroin. The pair argue: Klein wants to set up an obbo to catch the pimp r

While on foot patrol on the Jasmine Allen estate, PC Jim Carver contends with an elderly man, Ronnie Atkins, who wants to deal with the local youths ""his way"". When Atkins' best friend, Len Harrap, is found having fallen from the top of the building, Carver suspects foul play and investigates further. Harrap's GP tells him that Len was recently suffering from Post-Traumatic Stress Disorder, and that he had served with British forces during the Korean War. When a man matching the description of the association secretary, Charles Barratt, is reported to have left Len's flat, Atkins realises what has happened. Barratt was a corporal in their platoon during the war, and had forced Len at gunpoint to murder surrendered Chinese soldiers. When Len's daughter put his name up for the reunion, Barratt realised this was his chance to get rid of the photographic evidence of his war crime. Carver admits it will be difficult to get the CPS to prosecute Barratt, especially now the photographs are mis

DC Spears's hunch is proved correct when the truth about the rapes turns out to be more terrifying than anyone imagined.

Terrified, DC Kate Spears hides as Ferdinand crouches over DS Cork's motionless body and removes his car keys. When Spears calls on her mobile for back-up, Ferdinand hears and starts to approach her. Suddenly PCs Cass Rickman and Des Taviner appear and Ferdinand makes a run for it, escaping in Cork's car. Barely alive, Cork is rushed to hospital. DI Liz Rawton invites a traumatised Spears to stay at her place. That night she is awoken by the sound of DI Collins attacking Rawton. Overpowered, he is brought to Sun Hill where he refuses to talk but is rattled to hear that Cork is not dead. Ferdinand proves evasive despite evidence that he has been in Spears' flat the night before. His house is located and when searched a bag is found containing money and Ferdinand's passport but Rawton believes it is a decoy. In the garden Spears finds a box in the pond as Rawton takes a call telling her that Cork has died. In the box they find cash, drugs, diamonds and a passport with a false name. Knowi

Out on a pub crawl to celebrate a 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 the superintendent where he can stick his job. Inspector Gold, meanwhile, notes that Reg is acting quite out of character and avoiding the others. He wouldn't be planning to skip the country with the money, would he? When designer jackets go missing from a local department store and turn up on the local estate CID decide ex-con Joe Nash must be back up to his old tricks. But no-one can explain the mystery of the self-editing security tape. Sun Hill's romances are up and down. Jim's positivity about their relationship rubs off on June and they share a kiss while the other side of the coin sees Superintendent Tom Chandler dropping DS Debbie McAllister off at the abortion clinic leaving her to go through with the operation alone. And Lee Dwyer's parents

Lee Dwyer arrives with his mother and step-dad at Sun Hill to press his very serious allegation against Tony Stamp. It's an accusation that sends the team reeling and divides their loyalties when all the evidence points to his guilt. PC Jim Carver's position at CSU puts him in the awkward position of being appointed Lee's Family Liaison Officer. It leaves Tony wondering if anyone really is on his side. As PC Des Taviner so delicately puts it, ""Where there's smoke there's fire"", and PC Cathy Bradford's charming observation that, ""Mud sticks"". Cathy's on a roll with her canteen gossip and makes a bee-line to new PC Kerry Young's fiancé. She tries on her best seduction routine but when he shows no interest Cathy deviously spills the beans on Nick and Kerry's one night liaison. Watch out Nick... When father of teenage temptress Liz Chambers reports his daughter missing Brandon and Cass make enquiries. They pay a visit to her older boyfriend's house where they discover her bed isn't even co