A mysterious deadly disease is rapidly spreading across the country, and no one can resist it. Like one of the horsemen of the Apocalypse, she mows down entire cities. Where did she come from? What caused the pandemic? And the most important question: how can you stop it? Former stalker Maxim Ognev must once again face his nightmares and return to the Anomalous Zone to answer these questions and save humanity. Only Maxim does not suspect that the epidemic is just a screen for the terrible and merciless war that is going on right now. And the outcome depends on whose side you are on - whether you will live or die.