The composer Michał manages to telephone his wife and child in another part of the city that is being overrun by the Germans. After a few words, she tells him that the Germans are clearing the building and that they are coming for her. Then the line goes dead. The next morning, 23-year-old Officer Cadet Korab apologizes after walking into a room to find the second in command, Lieutenant Mądry, and messenger girl Halinka in bed together (Halinka later reveals that Mądry is her first lover). A German attack is stopped, but Korab is wounded while disabling a Goliath tracked mine.