Blutsbrüderschaft.

On November 11, 1918, the last day of the First World War , Lieutenant Colonel Klaus Olden desperately tried to hold a lost post with his unit. The rescue appears in the form of pilot Jochen Wendler, who shows up with his plane and drops ammunition. When Jochen's machine is shot down immediately, Klaus manages to pull him out of the wreck at the last second. Both are injured and taken to the hospital , where they are cared for by the attractive nurse Barbara, a childhood friend of Jochen. The two men form a blood brotherhood and drive together with Barbara to East Prussia , where they want to visit relatives of Jochen on their estate . But the relatives' yard was destroyed in the war. The post-war period turns out to be an economic disaster.