Spanish Civil War, 1937. A platoon of Republican soldiers plans to stop the advance of the rebel troops by bombing a bridge on the road to Zaragoza, near the city of Linás. With the close collaboration of the peasants of the area, the soldiers try to overcome the continuous bombardments and endure the harsh and tireless opposition of the powerful enemy…
| Actor | Role |
|---|---|
 Andrés MejutoCaptain Muñoz | Captain Muñoz |
 Nicolás RodríguezPilot Márquez | Pilot Márquez |
 José María LadoThe Peasant | The Peasant |
 Miguel del CastilloGonzález (uncredited) | González (uncredited) |
| PPedro CodinaSchreiner (uncredited) | Schreiner (uncredited) |
| SSerafín FerroSaidi (uncredited) | Saidi (uncredited) |
 Julio PeñaAttigniès (uncredited) | Attigniès (uncredited) |
| JJosé SempereCommandant Peña (uncredited) | Commandant Peña (uncredited) |