Sergei Vysotsky

On the way for fishing Leonid Karetnikov finds the body of a man on the roadside and admit a car driving out of there. While Karetnikov called the police, the body was gone. Also disappeared the bag with tools to crack safes, lying next to body. Pursuing the investigation of the case, Colonel Kornilov states that the victim is probably Lev Kotlukov - known "safecracker" nicknamed Leo the Boar. Also, it looks like he got hit by a car belongs to citizen - professor of the Institute, which has no relation to criminal organizations. To reveal the intentions of criminals, Kornilov decided to send his man Major Bugaev undercover to the gang.

Rare materials go missing from the archive. A conflict arises between two researchers—Ozerov and Rozhkin—over these missing materials.

Militia Colonel Kornilov is leading a complex investigation related to multiply carjackings.

An attack is carried out on the accountant of a research institute, and a large sum of money is stolen. The criminal investigation colonel not only solves the crime but also investigates its motives.

A ship captain's senior mate exposed criminal activities, leading to his car crash and criminal investigation.