The beginning of the 1960s, a period of aggravation of the confrontation between the USSR and the USA. In the most difficult weather conditions and with malfunctions on board, the first Soviet nuclear submarine K-3 sets off for a hike under the ice of the Arctic Ocean in order to surface exactly at the North Pole.

In a Russian coastal town, Kolya is forced to fight the corrupt mayor when he is told that his house will be demolished. He recruits a lawyer friend to help, but the man's arrival brings further misfortune for Kolya and his family.