On Easter Saturday, a policeman is shot attempting to stop a building society robbery. Detective Chief Superintendent Tommy Fox, head of the Flying Squad at New Scotland Yard and scourge of London's underworld, gets out from behind his desk and interferes. But there is more to the crime than is at first apparent.A C?zanne painting has mysteriously disappeared, a supermarket in France is robbed, and a man is murdered. Then Fox and his men get wind...