Reichau, a former army captain, served three years in prison for joining the OAS (Secret Armed Organization) during the Algerian War. His background has ruined his faith in his country's morals. At a loss for what to do, he accepts to take part in a heist planned up by Pierre, a pilot who gave him away in Oran. Yo, a beautiful woman, steals 55 million francs on a Paris-Bordeaux aircraft.