The prototype of the hero of the film - Soviet Ukrainian writer Yaroslav Galan, who devoted the last years of his life to exposing the Greek Catholic Church and the Ukrainian nationalists.

During the formative years of Soviet power, the first commune was organized in a remote Siberian village. The task of the counter-revolutionaries becomes its destruction…

A new teacher and her brother, who has been appointed head of fisheries control, arrive in a village on the shores of an estuary. Despite the hidden resistance of their fellow villagers, they manage to engage the village schoolchildren in an active fight against poachers.

About the forestry scientist Ivan Vikhrov, who devoted his life to the forest and the fight against the fact that “forestry is turning into ordinary forest management.”