Forced to abandon their land that was sold to the United States, a group of Mexicans turns into bandits. Their leader, Rojas, with the help of Trevor organizes a big robbery. But, caught by the sheriff, he is condemned to 20 years of prison. Threatening to torture Rojas' son, Trevor learns where the money is hidden, not realizing that Rojas' revenge would be so ruthless...
| Directing | León Klimovsky | Director |
| Production | Ignacio Gutiérrez | Production Manager |
| Writing | Eduardo Manzanos | Writer |
| Production | Jerónimo Montoro | Production Manager |
| Writing | Odoardo Fiory | Writer |
| Art | José Luis Galicia | Set Decoration |
| Costume & Make-Up | Maria Hernandez | Wigmaker |
| Camera | Tomás Blanco | Camera Operator |
| Art | Jaime Pérez Cubero | Set Decoration |
| Production | José Luis de la Serna | Production Manager |
| Camera | Emilio Foriscot | Director of Photography |
| Production | Luigi Mondello | Producer |
| Editing | Antonio Gimeno | Editor |
| Production | Eduardo Manzanos | Producer |
| Directing | José Ulloa | Assistant Director |
| Writing | Miguel Cussó | Story |
| Sound | Carlo Savina | Music |
| Costume & Make-Up | José Echevarría | Makeup Artist |