In the center of the new series Другой майор Соколов (The Other Major Sokolov) the work of a special service - the Office of its own security, which is investigating the crimes committed by law enforcement officials. Top management staff - Vlad Sokolov, Andrey Gordeev, Marina wind and Oleg Yershov are in a group under the leadership of Colonel Ladygina. It would seem that their service is not different from the regular police service: rapid development, wiretapping, surveillance, interviewing witnesses, arresting criminals.