Follows a Chicago investigator who travels to Scotland after a new serial killer commits crimes that match those that he looked into five years previously, one of which was the scene of his slain girlfriend's death.

　　Alastair (Norris), the commander of a covert Earth security task force, calls upon super-powered rookie Jim (Ting) to go on a mission led by battle-hardened Colonel Green (Singer) and his seasoned marines to track a mysterious energy disturbance at a base in New Mexico suspected of experimenting on alien technology. When the team encounters an unknown being of not only extraordinary strength and speed, but also the ability to control mindless warriors, the trio must fight through unstoppable hordes to uncover the truth behind the hostile alien fortress and prevent humanity’s demise.

　　未来的地球因缺乏氧气而不适于居住，一位妈妈,母亲大人,娘亲,老妈妈玛雅（珍妮佛哈得孙 饰）与她的孩子,女孩,少女,千金佐拉被迫住进地下，只能透过玛雅疑似已死亡的丈夫——大流士所设计的先进氧气装备才能到地表上短暂活动。此时一对神秘男女造访，声称他们知道大流士的去向，玛雅心切地同意他们进入地堡，没想到这对男女的动机并不单纯，玛雅与佐拉必须为自己的生存而战！