This Western is set in the Mexican valley of Sonora not that far south of the state of Arizona. It's just after the American Civil War, and a former Confederate officer, Mike Summers has taken refuge in a small town in the valley. He has married and is hoping to live in peace the rest of his life. Instead, he and his wife and the rest of the town are suffering the depredations of a brutal gunman, Danny Pose, and his gang of outlaws. Summers holds off picking up a gun because of his personal vow of non-violence. But the situation deteriorates and a new ally comes into the picture, Steve Fallon, a wandering gunslinger who may not be able to handle the bad guys alone.
| Directing | Michael Carreras | Director |
| Production | Jimmy Sangster | Producer |
| Writing | Edmund Morris | Screenplay |
| Writing | Peter R. Newman | Story |
| Editing | Pedro del Rey | Editor |
| Editing | David Hawkins | Editor |
| Production | José Gutiérrez Maesso | Producer |
| Camera | Alfredo Fraile | Director of Photography |
| Sound | Antón García Abril | Original Music Composer |
| Costume & Make-Up | Manuel Revuelta | Costume Design |
| Production | Niels West-Larsen | Associate Producer |
| Art | Francisco Canet | Art Direction |
| Production | Gustavo Quintana | Production Manager |
| Sound | Ramón Arnal | Sound Recordist |
| Directing | Francisco Pérez-Dolz | Assistant Director |
| Camera | Ricardo González | Camera Operator |
| Directing | Margarita Pardo | Script Supervisor |
| Costume & Make-Up | Francisco Puyol | Makeup Artist |
| Costume & Make-Up | Esther Martín | Hairdresser |
