Fist of Honor follows two warring crime families in Los Angeles. The godfathers of each family, Dino Diamond (Harry Guardino) and Victor Malucci (Abe Vigoda) have come together to agree upon an armistice. In spite of this, tensions mount when Tommy Diamond (Raymond Martino) murders a member of the Malucci family. As the violence begins, one of the dons is assassinated. In an attempt to create a scapegoat, an Irish ex-boxer Fist Sullivan (Sam J. Jones) is set up to take the fall. Sullivan must risk everything in a war where he is outmatched and outgunned to reclaim his freedom and honor, after he is framed for the death of his fiance Gina (Joey House). Will Fist Sullivan have what it takes to face the mafia head on in this action and thriller film? Supporting cast and characters include Frankie Pop (Frank Sivero), Tucchi (Nicholas Worth), and Detective Johnson (Bubba Smith).