Free stalker Explorer agrees to bring to Amber a former mentor - the legendary Ghost, where the scientist Vasiliev is already waiting to go to the Kh-16 laboratory together. But now there are two stalkers. This seemingly insignificant detail leads to the fact that the Ghost will not die in the basement of Amber. The carefree campaign that began throws partners into a whirl of events that change the fate of hundreds of people and the Zone itself. Unusual abilities are not the only thing that distinguishes these stalkers from simple honest vagrants. A secret science project reveals the real reasons why the heroes ended up in the Zone. Everyday life turns out to be a canopy through which the grandiose idea of ​ ​ creating the entire ecosystem and the goal of the existence of the Chernobyl Exclusion Zone appears.