Vladimir Kapitanovskiy

The heroines of the film are Soviet basketball players who take part in international competitions for the Hera Cup. Exciting basketball matches, the nobility of a Soviet athlete who saved the life of a Greek basketball player, the anxiety of first love-all these and other events make up the plot of the film.

In one of the occupied European cities, the commandant of the garrison gathers a troupe of circus performers. Coming from different countries, they are in the humiliating position of people forced to serve their enslavers. Many of them, recruited from camps and workhouses, were quite content with their lot. Only after a chain of subsequent events, the artists raise an uprising. Unarmed people are not able to resist the arrived guards. They die, but at the cost of their lives they regain their lost human dignity.

Soviet Scientist Petrovich pioneers the way to the Sun, but his spacecraft is never heard from again. Later, Andrew's laboratory investigates means of protection from deadly radiation. Andrew repeats Petrovich's journey, and offers his life to rescue an orbiting science laboratory, which holds the solution to the problem.

The picture is dedicated to the work of Soviet medical scientists who studied how stresses that are unknown under ordinary earthly conditions affect a living organism: overloads during exit from the atmosphere, a state of weightlessness, oxygen starvation. Experiments were first carried out on animals: dogs and rats, and later people also participated in the experiments.

About the joint Soviet-Bulgarian space flight under the Interkosmos program.