Sergey Voronin

The movie takes place in the late 1930s in the Far East. A group of pioneering surveyors led by Kirill Kostomarov is to lay the route of a railroad through remote taiga areas. To avoid unnecessary expenditure of human labor, Kostomarov proposes his own variant of laying - along the rocks, not along the floodplain of the river, as approved by the project assignment.

About the first expedition of Shura, a graduate of the Geological Institute, and her first love.

For Vera — a student of the Leningrad Pedagogical Institute, first love instead of joy and happiness brings disappointment — and it was enough to have one first deception, and before a self-confident girl changes, becomes suspicious and closed. She no longer believes in anyone and runs away from people — having left the institute, Vera and her small daughter leave for a remote village where no one knows her. Soon she has a thin and responsive friend — a teacher at a neighboring school, Aleksei Nikolaevich...

The young chairman of the collective farm, Roman Baklanov, once made a mistake: having given in to his wife and her relatives, he helped out his father-in-law, who drank the collective farm's hay, and gave him a fictitious certificate. Then, due to Baklanov’s fault, an honest guy was arrested, and he again did not find the strength to correct the situation. But when the scammers demanded that Baklanov himself directly participate in their dark affairs, Roman went to the secretary of the district committee for support...