Underboss "The Bull" Gravano rises through the ranks of the Gambino mob. His brutal past catches up to him when he lands behind bars and faces the life-threatening decision to turn state's e... Read allUnderboss "The Bull" Gravano rises through the ranks of the Gambino mob. His brutal past catches up to him when he lands behind bars and faces the life-threatening decision to turn state's evidence against his former friend, John Gotti.Underboss "The Bull" Gravano rises through the ranks of the Gambino mob. His brutal past catches up to him when he lands behind bars and faces the life-threatening decision to turn state's evidence against his former friend, John Gotti.