In the near future, a friendly exploratory mission to Earth from the planet Zenturia crashes on Mars's moon Phobos, and cosmonauts from the USSR are sent to the difficult and dangerous rescue. Although this film was never shown in the USA in its entirety, producer Roger Corman adapted the plot premise for his 1966 sci-fi-horror opus, QUEEN OF BLOOD, and utilized some of its special effects in that film.

Immediately after the prom, Olya Rusanova arrives in the city where her father worked and tragically died. Many years ago he dreamed of building a city, and now she is walking along the street bearing his name, a street without end. Having met her father’s friends, Olya learns him anew. They tell the girl how her father wanted to see large houses and wide streets on the site of the tent city. How he knew how to be friends and to love, and how longed for Olya when he broke up with his wife, who didn't agree to go with him.

Fighter pilot Nikolai Muravyov is experiencing a personal drama: his wife and son left for the mainland - they are tired of life beyond the Arctic Circle. Colonel Belyy, thinking that his wife will return to her husband if he serves on the mainland, sends Nikolai on a business trip. In the new unit, Muravyov meets his fellow student Yevgeni Shelest. Friends have to fly in pairs.

In the first days of the war, the mother lost her little daughter. Mikhailina found her and took her in, no doubt that she could become her real mother. All subsequent years she lived for the sake of the girl. But as time went on, the real mother continued to look for her child...