Based upon the TV collection the film adheres to DI Regan and DS Carter as they ended up being involved in a deadly political detraction. Among the leading participants of the federal government, Charles Baker (Ian Bannen) will protect a significant take care of OPEC securing the globe oil market and boosting Britain's position within it. Baker is the climbing celebrity of federal government, pertained to a future prime minister, who is very closely controlled by his urbane, manipulative American press assistant Elliot McQueen (Barry Foster). When Regan investigates the mystical death of a woman of the street as a favour to one of his informants, he becomes aware that Baker and McQueen might be included. A wave of murders follow - which sees Regan handle both the crooks and the power structure of the Metropolitan Cops and also British security services.