Centers of infection flare up with ulcers on the planet, in which the physical model of the familiar world changes. Finding a person within these limits is critical, and often simply impossible.
The military and scientists are trying to study the phenomenon. Around the foci there are cordons that protect the territory in an attempt to control it. "Sector 0" is one of the first such bursts and outputs of the anomaly that arose on the territory of Ukraine.
The exclusion zone is growing steadily gradually capturing new frontiers. The main characters in the new world are stalkers.