Oparin, an employee of the Ministry of Emergency Situations, informs Vershinin that he recognized a USB investigator among the dead recovered from the bottom of the lake. The man also worked on the case of the missing assistant prosecutor. However, the glass eye, by which he could have been identified, strangely disappeared before the bodies arrived at the medical examiner. Meanwhile, a boy who disappeared from an orphanage is found dead.

Andrey comes to the conclusion that there is a traitor in his entourage: the attackers manage to burn down the workshop for the production of drugs with which Yulia was poisoned, and the emergency worker Oparin is killed. To divert Vershinin's suspicions, his subordinates feign official zeal and are going to hire Yakovlev's assistant in a drug club.…