The events unfold on the eve of World War II. Jan and Captain Evgeny Kostin of the Red Army are crazy about each other. But the girl is also liked by General Danilov. In the early summer of 1941, Kostin is sent to a new place of service. Nazi Germany launches an attack on the Soviet Union. The hometown of Jan is attacked by fascist invaders. Kostin is seriously wounded in battle, but overcomes hundreds of miles to find his beloved. And in her city, he discovers... a grave.