Mike Sturges and his younger brother, Roy, are sentenced to Yuma Penitentiary on a trumped-up train robbery charge. Both endure cruel treatment before Mike escapes to extract revenge on their enemies.
| Directing | Camillo Bazzoni | Director |
| Writing | Steve Reeves | Writer |
| Writing | Roberto Natale | Writer |
| Costume & Make-Up | Franco Antonelli | Costume Design |
| Production | Paolo Frascà | Production Manager |
| Writing | Gordon D. Shirreffs | Novel |
| Editing | Roberto Perpignani | Editor |
| Costume & Make-Up | Marcello Ceccarelli | Makeup Artist |
| Art | Gastone Carsetti | Production Design |
| Camera | Enzo Barboni | Director of Photography |
| Sound | Carlo Savina | Original Music Composer |
| Art | Gastone Carsetti | Set Decoration |
| Production | Carlo Giovagnorio | Production Manager |
