During the Nazi occupation of a Czech city civilians are being rounded up on the slightest of pretexts and shot. One day three high school boys who crack jokes about a recently deceased "hero of the Reich" are pulled out of school by the Gestapo.
May 1945. On the outskirts of Prague, ordinary people meet Soviet soldiers-liberators with tears of joy in their eyes. In the early days of the lull, someone sadly recalls a pre-war life; someone unexpectedly meets his love; someone is returning from enemy dungeons looking hopefully into the future; and someone, having moved from a tank into a Czech tram, warmly recalls his craft as a car driver... These days, all those who survived the Great War fire swear an oath to keep peace on Earth forever, honoring the memory of those who gave their lives for simple human happiness.