After being dismissed from reserve duty, an operative from a special-operations diversion and reconnaissance unit doesn’t fit into modern peaceful reality. His options aren’t many: join another hot spot—or dissolve in the expanses of a newly created exclusion zone known as the Peter Zone. Choosing the second option, the former saboteur becomes a stalker nicknamed Old Man. While carrying out a job for a trader in an unremarkable village, Old Man clashes with one of the most dangerous mutants—a Destructor. During the fight, the stalker ends up in an anomaly and finds himself in a world far stranger than the Peter Zone. To get back home, Old Man must defeat the Evil that has come into this mysterious world with him—one populated by strange and terrifying creatures. However, very soon the stalker realizes what he truly wants: to return to the “native” Zone or stay with his new friends. In any case, wherever he chooses, his place is where monsters live.