Two young brothers are suspected of burglary and Croft discovers that they were deserted by their mother and left to fend for themselves.

An elderly man is arrested for beating his wife, but the couple have a bigger secret to hide. P.C. Quinnan is guilty of dangerous driving.

An old man has been murdered in his flat. D.C.I. Meadows has two suspects in custody, but both claim the right to silence.

A father beats up his son for being gay.

Morgan and Woods arrive at a burnt-out house and are told that the fire may have been started deliberately.

Deakin goes undercover as a professional hitman and is asked to kill the wife of a failing businessman.

Monroe leads an operation into cracking down on prostitution in the borough. Ackland and Jarvis tackle kerb crawlers, while Quinnan goes undercover as a prostitute's punter in an attempt to gather evidence on the madam of a brothel. However, Boyden suspects that Quinnan may have overstepped the mark and taken a shine to the girl when he tries to protect her from his angry line of questioning during interview.

Cryer is taken hostage at gunpoint by an aggrieved husband who has decided to take drastic action over a custody case. After accidentally firing the gun at his ex-wife, Cryer is then forced to make a difficult decision – save the victim and allow the man to commit suicide or risk the woman's life to prevent him from doing so. Meanwhile, with the canteen staff off for the night, Hollis takes his task of cooking meals for the prisoners a little too far.

Deakin and Croft investigate a blackmail threat against a supermarket owner, after Stamp and Garfield are handed a contaminated pie which has given a woman food poisoning. Boulton attempts to use state-of-the-art forensics to decipher indentations on one of the ransom notes, while Lines speaks to an ex-employee who initially denies all involvement – until he discovers that the victim of the contaminated pie is none other than the woman's daughter.

Daly and Croft investigate the suspicious death of one of three sisters.

P.C. Garfield deals with a twelve-year-old boy who is running amok on a housing estate