A fifth-grader leaves the gym class, no one has seen him since. Heartbroken parents blame the school administration for the missing child. The investigation finds out that the boy's father on the eve of his disappearance received an SMS demanding a ransom. Sokolovsky begins to develop a version of the abduction, but new tragic events at the school call into question its viability.

Contrary to Ignatiev's prohibitions, Katya sneaks into Fisher's bank and falls into a trap. Sokolovsky manages to arrive at the operation site on time: he manages to find what he has been looking for for so long - compromising evidence on an old enemy. It seems that he is literally one step away from the answers to the questions that tormented him. Unexpectedly, Pryanikov, and then Ignatiev, tell what they have been hiding for years. All participants in the events have only a few minutes to make the right decision.