Jane and the Colonel must journey to Africa to the lost city to retrieve the diamonds before the Nazis do. Comedy based on the popular wartime comic strip.

Head of company security, Harry Webb, fears that a diamond theft is about to take place at their major mining complex deep in the desert. He quickly manages to become very unpopular, particularly with Claire Chambers, a celebrated cover girl, daughter of the mine administrator. She is visiting the man she loves, Mike Bradley, who is responsible for security at the mine. Nelson, the mine administrator, gives Bradley a curious mission - to steal a diamond. He wants to implicate Bradley in order to bring him into contact with a certain Lewis who is preparing to rob the mine with the aid of a group of mercanaries and a local accessory known as Father Christmas. Webb, not being informed of the deceit, relentlessly pursues Bradley, who is contacted by Lewis. With the mercanaries in the process of penetrating the mine. Bradley reveals himself to be Father Christmas, the organiser of the entire operation...

Michael Cardiff is a professional revolutionary highly trained in a variety of techniques of assassination, infiltration and evading law enforcement. After escaping from prison he places identification items on a decomposed body to make him appear dead as he plans his revenge against the government. Cardiff uses his skills to murder a prominent judge making his death look like an accident in order to plant an improvised explosive device at his funeral attended by the movers and shakers of the regime. Only one non conformist police captain is on to his plans.