Documentary filmmaker Tatiana is working on a film about former European boxing champion Vadim Larin. As a director, she wants him to return to the ring, which would make her film more optimistic. Larin himself, touched by Tatiana's attention and in love with her, is ready to respond to this wish. However, a victorious return to the ring did not work out...

Wartime, summer 1941. Train carrying criminals gets under enemy fire and crashed. Out of all of the living are only a young lieutenant of the NKVD and two prisoners - the thief and repressed Communist party worker.