The Pony Express is finished as the Post Office plans to award the mail contract to a stage line. Bill and his father put in a bid for the mail, however there are three bids close together. The officials will run a race to pick the winner, and the Banton Brothers sabotage Bill's stage. Mary still believes in Bill until they try to get rid of him by holding up the regular stage with his well-known horse. Bill needs proof to clear himself and expose the bad guys.
| Directing | Noel M. Smith | Director |
| Writing | Roy Chanslor | Screenplay |
| Writing | Harold Buckley | Screenplay |
| Writing | Harold Buckley | Story |
| Camera | Ted D. McCord | Director of Photography |
| Directing | Wilbur McGaugh | Assistant Director |
| Editing | Doug Gould | Editor |
| Production | Jack L. Warner | Executive Producer |
| Sound | Howard Jackson | Original Music Composer |
| Art | Ted Smith | Art Direction |
| Production | Bryan Foy | Producer |
| Crew | Alice Van Springsteen | Stunts |
| Crew | Bob Woodward | Stunts |
| Production | Hal B. Wallis | Executive Producer |
