The love story of married chairman of kolkhoz Zakhar Deryugin to young woman Mannya Polivanova during a
harvest in Russian village of 30th. During World War II Zakhar Deryugin is mobilized and going to front. While the battles he is taken as a prisoner and makes runaway. Bryukhanov's wife Katya appears in occupation. Not having achieved Katya's consent to cooperation, Germans, having slandered, secretly execute her. Senior son of Deryugin's perishes from a fascist bullet. His mother Evfrosinya burns sleeping fascists in her own house. In return Germans prepare for the retaliatory action, but Zakhar alone with guerrillas rush into village and rescue its inhabitants.