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.”
Alexey Severtsev, who came to enroll at Leningrad University from Siberia, is cleverly deceived by experienced criminals. At the station, they manage to lure Severtsev into a deserted place, beat him and rob him. A young police sergeant Nikolai Zakharov is assigned to investigate this incident. Zakharov will show resourcefulness and courage, and, of course, will detain repeat offenders.