John Deakin is on trial, and Tony Clark is now Acting Detective Chief Superintendent. A high flying young officer, who has gone under cover to infiltrate a fascist organisation, appears to go native.

Supt. David Lindsay admits killing his wife, but claims it was manslaughter. Det. Sgt. Connell is convinced he's rigged the circumstances in order to walk free.

Clark and his team are called in to investigate when a black youth is killed in a hail of police bullets, and are soon caught up in conflict between the police and the local community. Their investigation draws them into the world of crack cocaine dealing.

A peaceful demonstration about council service cuts goes tragically wrong when the mounted police are called in to disperse the demonstrators. Clark's team is brought in but their activities are hindered by the chief constable heading the investigation.

An assistant chief constable is accused of sexual misconduct, and Det. Sgt. Connell's friend Kate is implicated. Det. Supt. Clark's search for a missing tape brings him back into contact with Angela Berridge.