After Vinnie's older brother is murdered during a mafia power struggle, and his father assumes the position of the Boss of Bosses of all the major crime families. Vinnie and his family are forced to flee the violent Mafia war in Sicily to America to save their lives. In Boston, Don Marenzano takes a liking to Vinnie, who takes the young pugilist under his wing. Marenzano trains Vinnie at his own gym and does everything he can to promote Vinnie's boxing...