On April 14, 2006, after an outbreak on the territory of the Chernobyl Nuclear Power Plant, the Delta team lands in the affected area to investigate the causes of the explosion, but on the very first day, communication with them is cut off and the headquarters decides to send the Alpha and Beta teams to search for them. A scout named Strelok was also sent to the rear. During the search operation, "Beta" is ambushed, and "Alpha" disappears without a trace. The shooter faces a difficult task: to find “Alpha”, be in time to help “Beta” and rush to the territory of the Chernobyl Nuclear Power Plant to search for “Delta”.