Otvetnyy khod (1981)

The southern command decides to send to the rear of the northern commando group consisting of Tarasov, Volentir and two marines: Shvets and Zinovieva. The saboteurs capture Lieutenant Colonel Moroshkin from the "Northern" group, who deliberately substituted himself, hiding a hidden transmitter on his body. Tarasov unravels the idea, his group penetrates to the airfield of the north and selects secret documents from the officer of the north.