Young Irish boxer James Carabine arrives in New York from Ireland, his way having been paid by Peggy Nolan, a girl from his hometown who`s sweet on him. Unfortunately, James falls for the trampy Marcolina, who hooks up with him when her boxer husband loses a fight due to the shady doings of friends of fighter Blanco Johnson. Peggy sets out to rescue him from the bad crowd he`s hanging with and get him back into prime boxing form.