Sedm havranů (1967)

In the bleak autumn mountains of the Beskydy Mountains, a dramatic story set in the wartime November 1944 takes place. Seven refugees join forces with partisans, but during a joint sabotage operation - blowing up a bridge - they discover they have a traitor in their midst. Brought to the mountains by a variety of motivations, the men suspect each other while fighting for their lives with an advancing German detachment armed to the teeth...