When Bob Carey is released from prison after a long sentence for murder, begins the search for Mary, his former girlfriend. But soon he finds out that during his absence, she has married Clifford, a wealthy landowner. The happiness of that marriage is only apparent, Mary, in fact, is seriously ill, suffering from a brain tumor whose pains she attributes to an imaginary pregnancy. It becomes necessary to bring to the city of Laredo for an operation, so Clifford sells all his possessions and begins the long journey towards hope. Soon others will join the expedition: a former army scout named Rogers, a nice Chinese cook, Lin-Chu, and a mestizo that responds to the name of "Bets".
| Directing | Joaquín Romero Marchent | Director |
| Production | Félix Durán Aparicio | Producer |
| Sound | Riz Ortolani | Music |
| Camera | Rafael Pacheco | Director of Photography |
| Camera | Fausto Zuccoli | Director of Photography |
| Editing | Daniele Alabiso | Editor |
| Editing | Mercedes Alonso | Editor |
| Art | José Luis Galicia | Art Direction |
| Art | Jaime Pérez Cubero | Art Direction |
| Art | Saverio D'Eugenio | Art Direction |
| Costume & Make-Up | Fernando Florido | Makeup Artist |
| Costume & Make-Up | Anchise Pieralli | Makeup Artist |
| Costume & Make-Up | Vicenta Palmero | Hairstylist |
| Production | Manuel Castedo | Production Manager |
| Production | Adriano Merkel | Production Manager |
| Directing | Rafael Romero Marchent | Assistant Director |
| Directing | Roberto Giandalia | Assistant Director |
| Writing | Federico De Urrutia | Screenplay |
| Writing | Joaquín Romero Marchent | Screenplay |
| Writing | Manuel Sebares | Screenplay |
