Five years have passed since the tragic events in the settlement “Raduzhny.” The surviving boy, Lёsha, who was saved thanks to Lieutenant Sotnikov, grew up and entered an institute. With the support of influential people from a certain mysterious organization, striving to destroy the Soviet Union—everything true was carefully hidden from the eyes of ordinary people. At some point, Lёsha realizes that only he can shed light on the truth, if he can obtain at least some evidence, and he decides to gather his own expedition. Will the young man have time to bring his plans to life with new and faithful friends? … After all, none of them know that in those places bloodthirsty creatures still live, and, in addition, by order of a mysterious man with a stubble beard, a mercenary has already been sent on their trail—someone who must, at any cost, destroy the group and not let them return home…