The Zone has once again become a testing ground, and the effect is quite predictable. Scientists, located in a bunker, in a secret laboratory, stopped communicating. Their patrons behave strangely and are in no hurry to send an evacuation group to the rescue of their employees. Instead, they hire an experienced stalker, nicknamed the Brigadier, who will have to find the bunker and find out what happened.The foreman is reluctant to get down to business: for good reason, they are probably ready to pay him too much money for a seemingly easy job. Greed wins over caution, but the stalker's "feel" won't let you down either.