Sounds of an unknown origin were recorded deep beneath the surface and shortly after 20 people went missing.

Anna, the Colonel and a squad of soldiers led by Major Sergei Makeev are flown by helicopter to the ice covered facility in Murmansk.

Anna, the Colonel, and the squad are met by the Deputy Head of Research of the facility Peter Kuznetsov and the man who reported Dr. Grigoriev's secrecy surrounding the disease.

Dr. Grigoriev wants guarantees that the remaining employees sealed in the lower levels of the facility during the evacuation be rescued.

Anna encounters Dr. Grigoriev who begs her to evacuate the others up the shaft and that he can't give her the elevator key.

Upon returning to the med lab, Anna and the Major find the walls covered with mold with Olga half melted to the floor but still alive.

Anna discovers that the mold dies when exposed to cold and uses a fire extinguisher to leave the med lab and decontaminate herself while the Major is already showing signs of infection.

Anna discusses the situation with the Colonel and explains that the mold cannot survive in cold conditions and that the permafrost surrounding the facility is what is keeping it from spreading.

Anna, Peter, and Nikolay agree that even if they make it back, they must not tell anyone about the mold since someone will eventually try to research it and could endanger all life on earth.

The Colonel does not return so Anna goes out into the 200 degree environment where the organism lives in order to retrieve the elevator key.

Nikolay insists on escaping the facility no matter the cost and violently fights Anna over the elevators controls.

Other members of Mikheev's unit include Ilya Ilinykh as an unnamed Sergeant, Vladimir Kolida as a radio operator, and Evgeniy Tscherkashin as a sniper.