AllMovie

A grandfather (Jean Gabin) kills a gangster who comes looking for his grandson at the family farm. The boy was involved in hiding heroin for the mob, but the grandfather finds the dope before the gang can retrieve it. He buries the dead goon in the back yard and drives his car into the stream. Soon other members of the gang come to the farm to search for the hidden drugs. The heroic grandfather systematically eliminates the criminals as he acts as judge, jury and executioner in his one man war on drugs and organized crime.