A man referred to only as "Yankee" rides into a dying, desolate town in frontier New Mexico which is completely controlled by a man called the "Grand Cougar." Almost immediately, a battle for dominance ensues.
| Writing | Giancarlo Fusco | Screenplay |
| Production | Francesco Giorgi | Producer |
| Writing | Alfonso Balcázar | Screenplay |
| Writing | Alberto Silvestri | Screenplay |
| Sound | Nino Rosso | Original Music Composer |
| Writing | Alberto Silvestri | Story |
| Editing | Juan Luis Oliver | Editor |
| Directing | Tinto Brass | Director |
| Production | Antonio Lucatelli | Producer |
| Editing | Teresa Alcocer | Editor |
| Editing | Tinto Brass | Editor |
| Writing | Tinto Brass | Story |
| Writing | Tinto Brass | Screenplay |
| Camera | Alfio Contini | Director of Photography |
