In a world gone mad, the last human colony struggles to survive underground, beneath a land of nightmarish mutants who seek to destroy them. But when the mutant breaks inside humanity's final stronghold, the battle for survival pits the human colonists against their deadly invaders miles below the earth's surface. 在一个疯狂的世界里，最后一个人类群体生存斗争的地下，在一地的噩梦般的突变谁寻求摧毁他们。但是当人类最后的堡垒内的突变打破后，人类的殖民地的战斗就在地球表面之下，人类的殖民地，在其致命的侵略者之下。
