Pavel's mother hates his fiancee. When Pavel serves in the Army she writes him that Nastya is no longer faithful to him. Pavel decides not to return to his native town. But many years later he returns to his fathers funeral and finds out that Nastya died sometime ago. She left three kids orphans and her elder daughter is also a daughter of Pavel.
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.
18-year-old Alyosha saved a pregnant woman from death. The woman safely gave birth to a son and refused to give him up. Then the doctors tracked down Alexei, and the young man brought the child to his home.
