Two rival Godfathers, Victor Malucci (Abe Vigoda) and Dino Diamond (Harry Guardino), have finally agreed to split control of Los Angeles 50-50. But when hot-headed Tommy Diamond kills 2 members of the opposing Malucci family, a secret war is waged. After one of the dons is assassinated, the Godfather who ordered the his knows he must pin the crime on someone else to avoid retaliation. Selected as the fall guy, an Irishman and ex-boxer named "Fist" Sullivan (Sam Jones) is framed for several murders, including those of his fiancée Gina (Joey Hosue) and the dead don. To clear his name and get revenge for Gina's death, Sullivan must step into a ring of another kind. Bubba Smith also stars.