The movie takes place at the construction of a tunnel in the Arctic Circle. A young engineer Andrei Arefyev is appointed head of the site. Between him and Nikolai Krumov, head of the neighboring site, there is a serious conflict. And it's not only about different professional approaches to construction methods in harsh conditions: Arefyev's favorite girl Svetlana, without any agony, preferred Krumov to him.

Schoolboy Petya Ivanov receives a letter from a famous scientist and 20 grains of a new high-yield variety of wheat. Petya and his schoolmates decide to create an experimental plot. Fearing that adults will take the seeds away from them, the children do everything in secret.

During a Soviet circus tour in Japan, a small street musician, Ken, meets a clown, Yuri Nikulin. Upon learning that his sick father is being treated in the Soviet Union, Ken sets off in search of him. The friendship of the great clown and the boy continues in Moscow.

Sergey's girlfriend desperately wants him to quit dangerous police job. But Sergey doesn't want to abandon his new case which proves to be quite difficult.

An adventures of a 100% nylon "fur" coat traveling between various people.

In one of the steppe regions of Kazakhstan arrives on Komsomol youth squad. Severe frosts, spring mud flows, exhausting work than their specialty - the development of virgin land does not come easy. But the young are young - they work, enjoy life, fall in love. In the center of the story - the touching romance secretary of the Komsomol organization and tractor driver Anne.

A spy game between Reds and Whites is in full motion during Russian Civil War.

A young worker Gavriil Ivushkin went with his comrades to the Altai steppe to build a commune. Gavriil Ivushkin endured the cold and hunger, the struggle against counter-revolution. But he could not hide his feelings for the beautiful Lyubasha, the daughter of a local "kulak".

The first postwar years. The Director of a small breeding station Avdotya Pavlovna is not immediately convinced of the anti-science of the official Lysenkov direction in biology. But making sure leaving the farm as an ordinary agriculturist, where he works on breeding new wheat varieties on the basis of the persecuted Lysenkova chromosome theory of heredity.