Valya supported her lover, denied herself everything, devotedly and sincerely loved him. He answered her with black ingratitude. Struck in the very heart, Valya decides to commit suicide with him.

After graduating from the institute in Leningrad, the young geologist Volodya Batanin arrives to work for distribution to a coal plant in the Arctic.

About the Karabanovs, who continued the work of educator A.S. Makarenko. The 1930s. A tragic accident cut short the life of the Karabanovs' three-year-old son. After what happened, Semyon Afanasyevich and Galina Konstantinovna came to work at an orphanage in the Ukrainian village of Chereshenki. Children from many different places gathered here. The couple devoted all their years to these children, who did not know their parents.

Antonina Vasilyevna, as a member of the bureau of the district committee of the party, was instructed to save the Leningrad children, whom the war overtook in the suburban camps. She took them to the Kirov region. After twelve days of hard travel, the children arrived in the village of Supryadki...

After the events of 1905, the proletariat slowly retreated with battle. The Lenin headquarters of the leadership of the revolution was moved to Finland. There Lenin and Krupskaya live illegally in safe houses. Vladimir Ilyich works on his articles, occasionally his associates visit him, sometimes he goes to the city for meetings with his party comrades — Gorky, Kalinin, Krasin, and others. By all possible means, Lenin directs the activities of the Bolsheviks in Russia...

A police detective arrives in a Siberian town to reopen the investigation of the murder of a schoolgirl, as he has some doubts about the culpability of the man who was convicted.

A teenage boy, an orphan, gets a job at a factory and begins to experience a different - adult and responsible - life...

The end of the 1940s. Test pilot Aleksei Kolchin was commissioned for the first time to fly the first Soviet jet fighter. The tests are successful, but it is necessary to improve the aircraft. When performing a test flight, Kolchin dies, his last words are recorded on tape. Having studied them, Kolchin's friend Sergei Sharov makes a new attempt and completes the test of the aircraft.