Director Allan Dwan’s excellent use of New York locations enlivens a rags-to-riches tale that fully exploits star George O’Brien’s championship boxing prowess.

A young girl is struck and seriously injured by a wealthy society matron's car. The woman brings the girl back to her house. Later, a hardened thief is told by the girl of a goblet, that could be the Holy Grail, which has healing powers and could help her. The thief, touched by her predicament, sets out to steal the goblet and bring it to her.

Young Leon Kanter dreams of being a great violinist. His parents scrape up the money for a violin and for lessons, and Leon rewards them by becoming a great player. But as an adult, Leon finds that people want more from him than just music.