A group of people find themselves stuck in remote train station in German-occupied Poland. A drunk German station guard there gets paranoid and sees partisans all around him, phones headquarters, and when the German soldiers arrive and search the station they find a gun. They then threaten to execute every fifth person unless someone claims it.
A pair of lovers go off to a small hotel in a little town. The memories of war, however, intrude on their idyll. The girl and boy relive certain wartime experiences in flashback. She was a communist who drove a boy loving her to give himself up.
While hiding from the Germans in the forest, young Polish corporal tries hard to fulfill his order to take care of a wounded lieutenant and wait for the doctor and transportation to come.
