In the late 1800's, Sicilians Franco and Ciccio are serving 20 years of prison for stealing two mules, when they are helped to escape by an American who says he is a friend of their grandfathers, who were killed in Texas by a gang of bandits who wanted to take over their gold mine. The two friends travel to America to take posses of the gold mine, but they soon discover that they are not the only ones who want it.
| Directing | Giorgio Simonelli | Director |
| Writing | Marcello Ciorciolini | Screenplay |
| Writing | Marcello Ciorciolini | Story |
| Writing | Giorgio Simonelli | Story |
| Production | Edmondo Amati | Producer |
| Camera | Juan Julio Baena | Director of Photography |
| Editing | Franco Fraticelli | Editor |
| Costume & Make-Up | Carlo Simi | Costume Design |
| Production | Antonio Gentile | Production Manager |
| Art | Amedeo Mellone | Production Design |
| Crew | Claude Marchant | Choreographer |
| Crew | Lanfranco Ceccarelli | Stunt Coordinator |
| Crew | Eros Bacciucchi | Special Effects |
| Directing | Giuliano Carnimeo | First Assistant Director |
| Directing | Vittoria Vigorelli | Script Supervisor |
| Production | Sergio Borelli | Unit Manager |
| Production | Luigi Colella | Production Secretary |
| Sound | Franco Rosi | Sound |
| Costume & Make-Up | Piero Mecacci | Makeup Artist |
| Camera | Giovanni Bergamini | Camera Operator |
| Camera | Franco Frazzi | Assistant Camera |
| Sound | Giorgio Fabor | Original Music Composer |