A young Cullen Baker rides his mule throughout the old west with his father, when bandits attack them, killing his father. Cullen becomes a loner, again riding a mule through the west and getting into trouble wherever he goes. When a soldier shows him the Colt Dragon revolver, a newly invented six shooter, he becomes obsessed with obtaining this gun as a means to empower himself. After murdering two soldiers and taking their revolvers, Cullen proceeds to rob banks and shoot down anyone who dares confront him.
| Actor | Role |
|---|---|
 Armando AcostaGordo chismoso (uncredited) | Gordo chismoso (uncredited) |
 Carlos AgostíSr. Patterson (uncredited) | Sr. Patterson (uncredited) |
| AAnelJane Patterson | Jane Patterson |
 René Cardona IIICullen Baker, niño | Cullen Baker, niño |
 René CardonaCapitán | Capitán |
 Carlos CardánNot listed | Not listed |
| GGloria Chávez(uncredited) | (uncredited) |
 Rodolfo de AndaCullen Baker | Cullen Baker |
| JJosé DupeyrónNot listed | Not listed |
 Juan GallardoTeniente | Teniente |
| CCarlos CortésBill Miller | Bill Miller |
 Alfredo Gutiérrez 'El Turco'Sargento Carson | Sargento Carson |
 Jorge RussekSargento Jim | Sargento Jim |
| IIsmael Larumbe Sr.Tom Anderson | Tom Anderson |