Vershinin conducts an operation to detain fighters of the Russian Guard, as a result of which all suspects in the robberies of collectors die. From Novikov, Vershinin learns that fighters of the Russian Guard have died from shots from a rifle belonging to an unknown sniper. The forensic scientist also reports that all the people found at the bottom of the lake were killed in the same way - by shooting at the temple on the right side, and all were connected by the same type of sea knot. Meanwhile, Vershinin’s acquaintance with Olga turns into a novel. In the morning, at the gates of his house, Medushevsky discovers a murdered group of young people. Among them, Vershinin recognizes one of Yakovlev’s guards.