Tommy McCoy grew up poor and scrappy. As a young man he discovers that he can fight with his powerful right arm. He becomes successful at boxing, however he has an alcoholic father.
| Directing | Roy Rowland | Director |
| Writing | Frederick Hazlitt Brennan | Writer |
| Production | Sam Zimbalist | Producer |
| Sound | David Snell | Original Music Composer |
| Camera | Joseph Ruttenberg | Director of Photography |
| Editing | Ralph E. Winters | Editor |
| Writing | George Bruce | Story |
| Writing | Thomas Lennon | Story |
| Writing | George Oppenheimer | Story |
| Art | Cedric Gibbons | Art Direction |
| Art | Eddie Imazu | Art Direction |
| Art | Richard E. Thomas | Set Decoration |
| Art | Edwin B. Willis | Set Decoration |
| Directing | Dolph Zimmer | Assistant Director |
| Sound | Douglas Shearer | Sound Director |
