Synopsis: Joe Martin (Charles Bronson), a quiet American, lives a quiet life in the South of France renting boats to tourists. He is happily married to Fabienne (Liv Ullmann) and has a twelve-year-old daughter named Michèle. But the quiet man has a past: ten years before, Joe (then Moran) had escaped with four other convicts, among whom the sadistic ex-mercenary Katanga. Seeing the latter brutally kill an M. P., Joe had abandoned his accomplices and left with the car. One night, Captain Ross (James Mason), Katanga, Whitey and Fausto re-appear..