In North Africa, in a detachment of the Spanish Legion, el Grajo, a brave veteran, and Mauro, who has just enlisted, become close friends. When an unfortunate circumstance results in the death of a man, suspicions fall on one of them.
| Directing | Juan de Orduña | Director |
| Camera | Alfredo Fraile | Director of Photography |
| Editing | Antonio Cánovas | Editor |
| Sound | Juan Quintero | Music |
| Art | Emilio Ferrer | Set Decoration |
| Sound | Enrique de la Riva | Sound |
| Camera | Tomás Duch | Second Assistant Camera |
| Crew | Luis Meléndez | Military Consultant |
| Crew | Marcial Torres | Military Consultant |
| Writing | Raúl Cancio | Writer |
| Writing | Luis Lucia | Writer |
| Writing | Jaime García Herranz | Writer |
