PC Armstrong and Sgt Stone interview the victim of an attempted sexual assault. TDC Walker becomes convinced as to the identity of the assailant. The officers set up a trap, with Armstrong as bait.

After a young boy is abducted from a shopping centre, Neil tries to elicit information from a convicted child killer.

Supt Heaton organises a press conference to appeal for help in the search for an abducted 11-year-old. When a ransom note is received, DI Manson solicits the continued assistance of a convicted child killer.

Sgt Smith attends to the victim of a knife attack. A suspect admits stealing from the victim, but denies the attack. PCs Green and Roberts rescue a young arsonist from a blazing car.

The police set up a mobile unit on the Jasmine Allen estate following the drive-by shooting of a teenaged girl, but the community response is disappointing. Sgt Smith is appointed FLO.

Officers from Sun Hill attend the funeral of murder victim Carly Samuels, which is disrupted by gunfire. Carly's best friend, Alisha, finally discloses vital information about the murder.

Officers from Sun Hill attend the funeral of murder victim Carly Samuels, which is disrupted by gunfire. Carly's best friend, Alisha, finally discloses vital information about the murder.

Officers from Sun Hill take part in midnight raids to arrest the men implicated in the shooting. Witness Alisha Daniels is placed under police protection.

When a witness drops out of the Carly Samuels murder trial, Sgt Smith tries to persuade her best friend to testify. PCs Roberts and Noble arrest a man for arranging a brutal assault on his pregnant girlfriend.

PCs Fletcher and Armstrong tend to the victim of an apparent assault. PC Gayle gets emotionally invested when investigating a serious assault on a twelve-year-old boy, and becomes the subject of a DPS investigation.

PCs Armstrong and Fletcher track down the victim of a traffic accident. DC Moss and DS Carter discover details of a planned shooting, and mount a search for the hit man.

PCs Valentine and Green respond to the reported sighting of a body being thrown into the river. DS Carter leads an investigation into the murder of a doctor, recently exonerated after allegations of professional negligence.

Sgt Smith calls on a pensioner who has been attacked in her home and robbed. DCs Moss and Webb discover that a neighbour is handling stolen goods, and set up a sting operation to trap the thief.

PC Green goes under cover at a party to trap a drug dealer, but gets in over her head when she gets emotionally involved with a suspect.

PCs Keane and Valentine come across a teenager who has attempted suicide. Evidence of a sexual assault leads DCs Dasari and Perkins to investigate a case of possible on-line grooming.

DSs Carter and Turner, and DCs Perkins and Dasari, work with officers from the Child Exploitation and Online Protection (CEOP) Centre to break an on-line paedophile network.

PCs Stamp and Gayle find the body of a missing teenager in a derelict house. DS Turner and DC Moss investigate and discover the girl was hooked on heroin and forced into prostitution by a local drug dealer and pimp.

Sgt Smith and DS Carter investigate the murder of a small-time drug dealer, the grandson of a former East End gangster. The victim's uncle, who runs a drugs and prostitution racket, is a suspect.

Supt Heaton sends DCI Meadows under cover as a dealer to expose a gang trading in stolen antiques.

DS Carter and DC Perkins are stuck in a traffic jam when they witness a stabbing. Increasing conflict between the two detectives compromises their subsequent investigation into an international car theft racket.

PC Green is called to the scene of a suspected suicide at a motorway bridge and recognises the victim as a teenage runaway. Some sex tapes lead DS Turner and DC Perkins to investigate the victim's boyfriend for her murder.

DI Manson and TDC Walker investigate the murder of a woman whose body is found at a landfill site. Investigations lead to three suspects, but all have alibis.

Sgt Smith has infiltrated a gang of arms dealers, and comes across a gun that has been used in a recent murder. DS Carter and DC Moss have to get the gun without blowing Smith's cover.

PCs Brown and Roberts pursue a female joy rider and discover a body in the boot of the stolen car. DI Nixon and DC Banks discover that the suspect in an earlier rape case was seen arguing with the victim the night before.

DS Carter, having inveigled himself into the drug baron's gang, tries to get close to the cocaine shipment. DCI Meadows persuades the gangster's daughter to turn on her father.

DI Nixon is furious at the collapse of the rape and murder trial and accuses DC Banks of colluding with his wife, the defense barrister in the case. Now convinced that their case is unsound, Banks investigates the flatmate of the accused.

Supt Heaton mounts an armed response operation at a school, where a gunman has shot Sgt Smith and is holding two schoolgirls hostage.

PCs Valentine and Gayle deal with the reported disappearance of an eight-year-old girl. Valentine suspects the girl's father, but when DCs Dasari and Webb investigate, a schoolboy implicates his own father.

DI Manson and DCs Dasari and Webb interview a schoolboy in connection with the murder of an eight-year-old girl.

TDC Fletcher struggles to adapt to DS Turner's leadership style as they investigate a series of attacks on a developer. Suspicion falls on an anti-capitalist protester, but the officers soon uncover a protection racket.

Patrolling the Bronte estate, PCs Ghir and Brown break up an assault on a young couple. The officers' contrasting approaches bring them into conflict, and Ghir's impetuosity quickly gets him into trouble.

Sgt Stone and PC Taylor attend a report of a missing fifteen-year-old, then discover her, beaten unconscious. Their investigations into her last known movements lead them to suspect two boyfriends of her assault.

PCs Roberts and Ryder are called to a stabbing on a bus. DC Perkins is concerned to discover that his daughter, Holly, the key witness to the crime, had tried to intervene.

PC Stamp takes PC Roberts for his advanced drivers' assessment. The officers pursue but lose a stolen vehicle that is later involved in a hit-and-run incident.

DCs Masters and Webb deal with a suspected heroin overdose, but fingerprints on the the needle suggest that the victim was murdered. Investigations uncover a network involved in trafficking underage girls.

DCs Masters and Webb attempt to crack an operation trafficking teenaged girls. Webb goes under cover as a punter at a brothel suspected of providing under-aged prostitutes.

DC Moss and DS Turner investigate a spate of burglaries. The victims had all entered a competition at a grotto in a local market, and the officers pose as customers to set up a sting.

DSs Turner and Rutherford race to track down the fugitive drug dealer Rob Towler and undercover DC Moss before a gang from Manchester catches up with them. Turner is shocked when Moss appears to have decided to go native.

DC Moss explains her recent behaviour to DS Turner, and the pair attempt to expose DS Rutherford and his involvement with the Tameside Crew.