According to scientists, the Third Great Emission occurred in the Zone. And it could not happen by itself. A group of scientists was sent from Sakharov to the Chernobyl Nuclear Power Plant to find out what happened under the sarcophagus. The group naturally could not get there successfully. A short time later the connection was lost. Sakharov did not calm down and suspects that something is wrong here. A former mercenary and an old friend of the professor is sent to the Zone. Main objectives: get to Yantar and receive the following instructions.