Episode 6

S1, E6: Episode 6

Available on Prime Video
The bomber is still not found. However, another explosive device was found nearby, and this time a school is in danger. Sergey manages to find contact with one of the residents, who is happy to help him, and they begin to go through possible theories of the crime. While solving this complicated problem, Sergey manages to help Margarita to bring her little sister to her senses.