1941. An American elite unit under the guidance of Captain Martin Stone receives the order to destroy a hostile bunker on the Finnish-Russian border. The Americans are supported by Finnish forces. The first attack on the bunker ends devastatingly. The unit is forced to back down to the forest. As they try to regroup, the soldiers are suddenly attacked by the same enemies they had just killed a few minutes before. Evidently, Captain Stone and his men are confronted with the result of a failed Nazi experiment on Russian soldiers - undeads.