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 accidentally 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.
Tommy Cannon – Sergeant Cannon
Bobby Ball – PC Ball
Suzanne Danielle – Kim[2]
Roy Kinnear – Lloyd
Eric Sykes – Chief Constable
Jack Douglas – Chief Superintendent
Edward Judd – Hilling
Jon Pertwee – Coastguard
Arthur English – Farmer