Leon, a hacker convicted for a crime he did not commit, escapes from detention centre following the death of his father, to take revenge on the man who really did it.

Sgt. Cannon (Tommy Cannon) and PC Ball (Bobby Ball) run the police station in the quiet town of Little Botham. When the station is threatened with closure due to a lack of crime, they decide to invent some crimes to justify their existence. When they try to steal a painting from a local rich businessman (Roy Kinnear), they accidently stumble across a gang of real art thieves who have just stolen £1 million worth of paintings. It is up to the two bungling cops to stop them escaping with their haul.

Philip Kimberly, the former head of the British Secret Service who defected to Russia, is given plastic surgery and sent back to Britain by the KGB to retrieve some vital documents. With the documents in hand, he instead plays off MI6 and the KGB against each other.