Fired for crashing his aeroplane into his employer's ranch, Tom Mix is elected sheriff in a town with, as a title stated, "a high mortality rate among sheriffs." Mix, of course, prevails against almost impossible odds, at one point cornering a gang of cutthroats holding leading lady Dorothy Dwan captive in the crater of a volcano about to erupt.
| Actor | Role |
|---|---|
 Tom MixTom Tracey | Tom Tracey |
| TTony the HorseTom's Horse | Tom's Horse |
 Dorothy DwanSheila Blaine | Sheila Blaine |
 Philo McCullough'Black Jack' Lundy | 'Black Jack' Lundy |
| JJocky HoefliThe Silent Kid | The Silent Kid |
 Tom Kennedy'Hayfever' Hawkins | 'Hayfever' Hawkins |
 Lon Poff'Slim' Snitzer | 'Slim' Snitzer |
 Harry DunkinsonMike McCool | Mike McCool |
| CClark Comstock'Wash' Taylor | 'Wash' Taylor |