Le manager de boxe Nick Donati pense avoir trouvé un futur champion en la personne du « Kid Galahad ». Il déchante quand ce dernier tombe amoureux de sa sœur.
Despite his talent as a musician, a city boy decides to become a boxer. He's successful as a fighter — much to the dismay of his parents. When gangsters try to buy a piece of him, he begins to have second thoughts.