Joe and Paul Fabrini are Wildcat, or independent, truck drivers who have their own small one-truck business. The Fabrini boys constantly battle distributors, rivals and loan collectors, while trying to make a success of their transport company.
| Directing | Raoul Walsh | Director |
| Writing | Richard Macaulay | Screenplay |
| Writing | A.I. Bezzerides | Novel |
| Writing | Jerry Wald | Screenplay |
| Costume & Make-Up | Milo Anderson | Costume Design |
| Sound | Adolph Deutsch | Original Music Composer |
| Editing | Thomas Richards | Editor |
| Costume & Make-Up | Perc Westmore | Makeup Artist |
| Production | Mark Hellinger | Associate Producer |
| Camera | Arthur Edeson | Director of Photography |
| Art | John Hughes | Art Direction |
| Production | Hal B. Wallis | Executive Producer |
| Camera | George Hurrell Sr. | Still Photographer |
| Sound | Leo F. Forbstein | Music Director |
| Sound | Jerome Moross | Orchestrator |
| Production | Jack L. Warner | Production Manager |
| Directing | Elmer Decker | Assistant Director |
| Crew | Byron Haskin | Special Effects |
| Sound | Arthur Lange | Orchestrator |
| Crew | Buster Wiles | Stunt Double |
| Sound | Oliver S. Garretson | Sound |
| Crew | Hans F. Koenekamp | Special Effects |
| Crew | Ed Brandenburg | Stunt Driver |
| Crew | Harvey Parry | Stunts |
| Sound | Hugo Friedhofer | Orchestrator |
