The Great Riviera Bank Robbery

Ex-paratrooper Bert and Jean are members of a right-wing nationalist organisation. Needing to raise cash to buy arms, Bert devises a plan to dig their way into a bank vault. They persuade some local French gangsters to join them in return for a cut of the haul. After several nights spent digging through a wall in a sewer, they break their way in the safe deposit boxes.