Vlastimil Brodský

In a small town still occupied by the Germans as World War II's tide is turning toward the Allies, apprentice train-watcher Milos is oblivious to the war. Instead, he is obsessed with having his first sexual experience. Despite the favors of train conductor Masa, Milos has no luck. His quest leads him to a female Resistance fighter who, in passing, recruits him to the cause. As Milos finally finds love, danger draws closer.

Former Nazi Klaus Abard survives to the 1990s by taking anti-ageing pills. He plans to use a time travel trip to return to Germany in 1944 and present Hitler with a hydrogen bomb, so that he can win the war. Unfortunately the pilot, woman-chasing Karel Bures, dies on the morning of the trip and his earnest twin brother Jan impersonates him, without knowing about the plot. The plot goes wrong when they lose the bomb and land near Hitler's bunker in 1941, at a time that the Nazis sense victory. Bures, with two of the plotters, escape capture by the Nazis and make it back to the time machine. Bures programs the machine to return one day before they left, because he figures he can then save his brother and foil the plot.

Set in the late 1940s, the film concerns the treatment of suspect "bourgeois elements", a professor, a saxophonist, and a milkman, who are put to work in a junkyard for rehabilitation.