"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."
Alfredo Mayo
as El Grajo
Luis Peña
as Mauro
Manuel Luna
as Commander Tudela
Miguel Pozanco
as Curro Montoya
Pilar Soler
as Leda
Manuel Arbó
as Ionescu
Rufino Inglés
as Captain Romero
Fortunato Bernal
as Rodete
Arturo Marín
as Samuel
Fred Galiana
as Rodríguez
Julio Gallego
as Fidel Lozano
Juan de Orduña
Director
Alfredo Fraile
Director of Photography
Antonio Cánovas
Editor
Juan Quintero
Music
Emilio Ferrer
Set Decoration
Enrique de la Riva
Sound
Tomás Duch
Second Assistant Camera
Luis Meléndez
Military Consultant
Marcial Torres
Raúl Cancio
Writer
Luis Lucia
Jaime García Herranz