Fleeing to America following a terrible crime, Irish-born fighter, Danny McCabe, throws in his lot with Nicolas and Lucia Mariani, siblings who have emigrated from Corsica in search of their fortunes. Adrift in the tough and unforgiving world of 1930s New York, they rely on Danny's bareknuckle fighting skills to survive. While Nicolas is tempted ever deeper into the underworld, Lucia can think of little but her obsessive drive to succeed in Hollywood. When Danny McCabe's dreams of boxing stardom