Shortly before the First World War, an Italian and an Austrian mountain guides take part in a mountaineering expedition together. Not long afterwards they find themselves fighting on different sides in the same area in the Dolomites, fighting to conquer the same high pass (Col Alto). When the war is over, they meet again. Their friendship has survived the war. There are two other versions of the film. The original was shot in German the same year (Berge in Flammen). The other, shot in English the year after, was produced by the American Universal Pictures (The Doomed Battalion). Both uses scenes from the original German version.

Marie-Antoinette Buzet
as Pia Dimaï

Joë Hamman
as Le lieutenant Gall

Armand Bernard
as Le soldat autrichien

Georges Péclet
as Le lieutenant Franchini

Luis Trenker
as Florian Dimaï

Henri Valbel
as Le commandant

Willy Rozier
as

André Saint-Germain
as