With the ending of the Spanish Civil War, a dispirited band of volunteers from the International Brigades seeks refuge in France. But on reaching the frontier, the band is disarmed, and all are detained as political prisoners. Then come instructions from Vichy that all fit prisoners are to be sent to Morocco to work on the Sahara railway for the Germans. However, one man manages to escape to London with vital information for the Allies.
Adolf Wohlbrück
as Karel Langer
Margaretta Scott
as Manuela
Mary Morris
as Sarah Duboste
Reginald Tate
as Ricardi
Peter Sinclair
as Jock Sinclair
David Horne
as Dr. Duboste
Hartley Power
as Col. Bagley
Sybille Binder
as Erna
Charles Victor
as Bourdille
Joseph Almas
as Franz
John McLaren
as Pete
Dennis Arundell
as Gatzini
