Seasons & episodes

The team investigate when a young boy called Alfie is badly beaten and his mother's house broken into. They learn that her estranged husband Carl owes money to a loan shark. Jo and Stevie soon find out that Carl is a drug dealer and after breaking into the pl;ace he is staying at they find his body. Nikki works out that Alfie is not saying everything that he knows.

Whilst stuck in a traffic jam Max and Terry hear a woman scream out who is dragged out from her car and murdered. The men responsible get away. It soon becomes clear that the incident is to do with car jacking.

Alan Marlowe is discovered by Beth and Sally badly beaten up. The team uncover some interesting facts when they launch an investigation.

The team investigate an apparent suicide who turns out to be Lucy Burton. It is soon discovered that she was murdered though and most of the evidence links the murderer as her boyfriend.

Three new recruits start at Sun Hill. After a hardware store is robbed a cutting devise stolen is used in a bank robbery. When the team discover who is behind the crime they are pretty shocked.

Brown and Ghir find a body in a landfill. Manson leads the investigation into the death. It appears the victim, Adele Jones, had a sordid love history. With a boyfriend, an ex and even her brother implicated, CID find themselves with too many suspects to get a clear picture. Adele had an argument with another man before her death, and he is suspect number one. He is cleared, meaning there may be a different motive for the killing all together.

A young boy called Emile Grover is found with a loaded gun and brought into the statiopn for questioning . Emile says he was asked to look after it by Andre Tyrell. PC Mel Ryder is teamed up with Smithy on her first day. Emile's life ends up in danger after he goes missing.

Becka Davis is found upset and she later tells Mel she was assaulted in her own home. Jeremy Williams is questioned about the assault and it is discovered that somebody has been pretending to be her on the Internet. Smithy works undercover to expose a gun running outfit.

A box of fireworks goes of in front of Beth and Will's police car. Jason Patterson is caught having committed the crime. They learn that the boy's step father is at a football game with the rest of the fireworks.

Smithy continues to work undercover and finds himself getting in deeper with Darren Cutler, Kieran Wallace, and Tommy Rose. Darren soon works out that he might have been crossed though.

Smithy continues to work undercover. He meets with Bob Gatting who is the leader of the SE1 gang. Kieran Wallace is beaten up by Gatting's thugs. Stevie poses as Smithy's girlfriend. During a confrontation Smithy is forced to reveal his true identity.

Jack takes some time of and plays a game of poker with some old friends. When one of his friend's grandson is knocked down out side of his flat Jack believes that he was the intended target. He soon discovers that his friends have been keeping secrets from him though.

Webb and Banksy investigate a suspicious house fire, and Webb is surprised when he discovers the homeowner is an old informant of his. The prime suspect is the victim's landlord, who worked with the victim in the past. Events take a bizarre twist when, during forensic searches, Olosunje finds human remains in the basement. The victim is identified as a contractor who went missing in the 1970s. The big question is; who did it? Webb is drawn to the landlord's solicitor Naomi Woods, but he is left embarrassed when Banksy reveals she is his wife.

Sally and Ben attend the scene of a hit and run. The investigation becomes more complex as it continues.

Teacher Phil Talbot is found unconscious in his home. Sally learns that he had been having problems with a couple of female students that he had suspended for bullying. The team are shocked when they discover that he had been having an affair with the bullied girl.

Leslie Downey is hurt when a scaffolding pole goes through the window of his car and Nikki and Will show up at the scene. When it is discovered that it it is not an accident Nikki and Will attempt to find out who is responsible.

Mel and Nate discover a woman unconscious at the wheel of her car. Rachel and Mickey find themselves investigating a break-in at a jewellers but not everything is as it seems.

Paula Merrick is discovered unconscious in an alleyway. After she is taken to the hospital she informs Samantha and Banksy that she had been out last night and had been flirting with a male stripper called Tom Norris and then later had gone home with him.

The body of Vikki Miller in the boot of the car after Millie and Nate chase a joy rider but the driver escapes capture. Suspect Tom Norris is charged with her rape and murder and also the rape of Paula Merrick.

Max works undercover as a dock yard worker and he keeps both Pete Monks and Tom Harris under surveillance. When he is about to have them arrested for stealing DVD players, Intelligence Officer Karen Lacy arrives and lets the team now that Pete Monks and his family are already involved in an investigation involving drugs.

As Pete Monks stews in custody, and Tom Harris lies in St. Hugh's, Lacy, Meadows and Carter weigh up their options. Carter suggests alienating Dave from his children. Anthony, who appeared to be Tom's boyfriend, was likely to know that his father ordered the beating on Harris. As expected, he tells his father he loves Tom and tells him he can do the deal alone. Chloe calls Dave, explaining Pete bottled it and Asif is alive, before telling him she is carrying Asif's child and is moving away from London. Dave confronts Pete, and tells him he is finished with him. With just Carter left to trust, Dave decides to go get the coke once Carter hints at the wire he planted in Dave's office. As Carter and Dave go for the coke, Green calls Meadows to say an angry Pete is looking for Carter, and he's armed with a handgun.

Callum and Leon investigate the case of a stolen dog. The team learn that a woman has entered a tower block that is about to be demolished to retrieve her diary.

Sally is involved in a serious car crash. Ben attempts to save her career and gives the ambulance men a false name for her. Smithy and Tony become suspicious though when they learn about the crash.

Rachel and Roger answer a call and find Gavin Henshaw beaten up when they arrive. Grace and Kezia question Jay Newman and learn that he was at Gavin's house at the time the attack happened. Jay tells them that Les Cooper attacked Gavin. Later there is another attack and Jay's body is discovered.