At a mine on the shared edge of France and Germany, an underground explosion leads to the entrapment of a group of French miners. In an effort to save the trapped Frenchmen, German miners Wittkopp and Kasper take it upon themselves to traverse a crumbling war tunnel leading down into the mines. Yet, though the workers harbor no political biases against one another, their callous, less tolerant bosses hope to halt this cross-cultural rescue mission.

Alexander Granach
as Kasper

Fritz Kampers
as Wilderer

Ernst Busch
as Wittkopp

Elisabeth Wendt
as Frau Wittkopp

Gustav Püttjer
as Kaplan

Oskar Höcker
as Obersteiger

Daniel Mendaille
as Jean Leclerc

Georges Charlia
as Emile

Andrée Ducret
as Françoise

Alex Bernard
as Grand-père, le vieux mineur