Judge Truscott's daughter, Helen, spurns society life for social work among the poor immigrants. She is soon befriended by heavyweight boxing contender Dan Williams, who saves her from a runaway horse. Dan's nephew, Johnny, is abducted on the eve of the championship fight and is threatened with harm unless Dan agrees to be knocked out in the fifth round. While the bout is underway, Helen and some of Johnny's friends rescue the boy. They arrive at the fight as the fifth round approaches, and Dan wins the championship, along with Helen.