The first training work of Nastasya Marsakova, the first course of VGIK (workshop directing the feature films of Vladimir and Alexandr Kott).

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.