Follow the adventures of Interpol policemen Duval and Mornay as they fight against international drug-running, homicide, robbery and forgery. Opening titles voice-over: "Crime knows no frontiers. To combat the growing menace of the international criminal, the police forces of the world have opened up their own national boundaries. At their headquarters in Paris, scientifically equipped to match the speed of the jet age, sixty-three nations have linked together to form the International Criminal Police Organization, INTERPOL!"