Reporter Speed Morgan helps Flash Barrett escape from the police and this gets him into Flash's gang where he poses as a gangster. Flash and his gang head west guning for Bill Miller who failed to send some diamonds on to Flash. Speed hopes to bring Flash to justice but is in trouble when his true identity is revealed.
You can now watch Diamond Trail online on the following streaming providers in the United States.
| Directing | Harry L. Fraser | Director |
| Production | Paul Malvern | Production Manager |
| Writing | Sherman L. Lowe | Writer |
| Crew | Faxon M. Dean | Cinematography |
| Production | Trem Carr | Producer |
| Editing | Carl Pierson | Editor |