For the third year, the expedition has been searching for the causative agent of an infectious disease rampant in the Ussuri taiga, where a major construction project is about to begin. Meanwhile, the enemy seeks to destroy the fruits of years of labor of Soviet microbiologists. Young scientist Vasily Zheludev exposes a master saboteur and forces him to flee into the taiga.
Length 62 minutes
Vladimir Druzhnikov | Anatoliy Kuznetsov | Mikhail Troyanovsky | Ivan Voronov | Nikifor Kolofidin | Roza Makagonova | Liliya Yudina | Nikolai Bogolyubov | Vladimir Yemelyanov | Margarita Nazarova | Aleksey Alekseev