After the terrible accident at the Chernobyl nuclear power plant, the radioactive contamination zone was surrounded by a cordon. The government banned the passage for barbed wire on pain of death, because terrible and inexplicable events began to occur there, which the world's population should not know about. The facts were published in the press: everyone who worked at the Fourth Power Unit died, the radiation background in the Zone is still extremely high, its territory is teeming with mutants and anomalies, so people on dead land have nothing to do. But one day a man comes out of the Zone to the cordon, who says that there, on the infected land, there are survivors who can still be saved. The government is urgently forming a group of rescue scientists. And the only one who can lead them to the center of the Zone is a stalker who miraculously managed to stay alive after that terrible accident.