In 1922, Infantry Captain Fernando Salas, arriving from Madrid, joins, without much enthusiasm, a battalion ruled by Commander Almendro, a tough veteran of the African war who soon notices a clear lack of military vocation in the new recruit.
| Directing | José López Rubio | Director |
| Writing | José López Rubio | Writer |
| Writing | Enrique Llovet | Writer |
| Sound | Manuel Parada | Music |
| Crew | Francisco Centol | Cinematography |
| Camera | Andrés Pérez Cubero | Director of Photography |
| Camera | Mariano Ruiz Capillas | Director of Photography |
| Editing | Petra de Nieva | Editor |
| Art | Félix Noain | Production Design |
| Art | Luis Noain | Production Design |
| Costume & Make-Up | Vladimir Tourjanski | Makeup Artist |
| Production | Ramón Peña | Production Manager |
| Directing | Ramón Plana | Assistant Director |
| Directing | Sebastián Almeida | Assistant Director |
| Sound | Miguel López Cabrera | Sound |
| Camera | Félix Mirón | Assistant Camera |