After serving together in the French Foreign Legion, a mercenary and a doctor leave the service and go their separate ways. Later, they are reunited and become involved with a caper involving millions in a high-security safe. The two men become locked in during a holiday weekend as they attempt to crack the safe's combination.

Alain Delonas Dino Barran
Charles Bronsonas Franz Propp
Olga Georges-Picotas Isabelle Moreau
Bernard Fressonas Inspecteur Antoine Méloutis
Brigitte Fosseyas Dominique "Waterloo" Austerlitz
Ellen Bahlas Martha
Jean-Claude Balardas inspecteur de police
Marianna Falkas Catherine
Jean-Paul Triboutas inspecteur de police