Columbia Pictures elevated stunt man Jock O'Mahoney to stardom in this 15 chapter western serial about the building of the transcontinental railroad. O'Mahoney played a railroad agent who uncovers the master criminal behind a series of sabotage attempts on the construction site.
| Directing | Spencer Gordon Bennet | Director |
| Directing | Thomas Carr | Director |
| Writing | George H. Plympton | Screenplay |
| Writing | Sherman L. Lowe | Screenplay |
| Writing | Royal K. Cole | Screenplay |
| Production | Sam Katzman | Producer |
| Camera | Fayte M. Browne | Director of Photography |
| Sound | John Leipold | Music |
| Editing | Earl Turner | Editor |
| Art | Paul Palmentola | Art Direction |
| Art | Sidney Clifford | Set Decoration |
| Production | Herbert B. Leonard | Production Manager |
