The film begins with Milos having been hired as a station guard at the same small railway station that his father was a conductor at for years. This is during World War II and the Germans occupying Czechoslovokia. He looks forward to his job because he does not have to do any hard labor and will be able to retire earlier that most and still be healthy. Milos and the young conductor, Masa are quite fond of one another and we see them miss kissing each other as her train rolls away.
We see Zdenicka arrive, he is a Nazi collaborator who is always spouting Nazi propaganda to the men at the station but without it ever landing. Milos is soon after invited to join Masa and spend the night with her. They begin to kiss and before they can sleep together Milos ejaculates. Because of his shame he attempts suicide, but is found before he dies and his life is saved. He discovers from a doctor that he has premature ejaculation which is more common than he thinks. The doctor recommends he think of something else such as football and to seek the help of an experienced woman to help him.
Milos returns to the station where the Germans are attacking because the Resistance is bombing their trains. Milos bravely boards the Nazi train and is let off soon after. He makes it back to the station where Hubicka tells him they are going to blow up an incoming train the next day. That night Viktoria Freie delivers the bomb and spends the night with Milos to resolve his sexual problem.
Hubika is meant to place the bomb, but he is called into a disciplinary hearing with Zdenicka for his behavior with a young woman in the train station where they were involved sexually. Thus, Milos is the one who has to place the bomb. He is shot by one of the Nazis and his lifeless body falls onto the train just before the explosion goes off. Once it does it blows Milos' cap back to the station where Masa picks it up in the debris of the explosion.
