The main characters are already familiar to the audience "detectives" - Mazurov, Astafiev, Pronin, Fortuna, Ignatov. In the fourth season, they will catch the criminal on live bait, which will be a thief in law named Borovets. Then detectives will take up a special case about the loss of a container with cigarettes worth several tens of millions of rubles.—Andrey Da!