一批为美军研制秘密武器的科学家神秘失踪。Tyler领导的海军陆战队员奉命前去查明真相，途中遭遇前所未见的强大敌人，一场大杀戮开始了…… On a remote US Army facility a group of scientists conducting top secret weapon experiments vanish. An elite covert ops team commanded by Lt. Tyler (Kevin Sorbo) is tasked with recovering the missing personnel within 24 hours. The unit arrives only to find out there objective may not be what it seems, what was strictly a search and rescue mission has now become search and destroy. With time running out and the death count rising Tylers team must begin the hunt or fall prey to a predator unlike any they have ever encountered.

29岁的尼克来自美国，理论上，这是他和西莉亚(27岁) 的新生活应该开始的日子，他们打算乘飞机去美国---那里尼克的朋友正等 着欢迎他们。他们的关系开始不久，但是他们都想放弃以往的个人包袱，可是放不下。对西莉亚来说，这是流产的创伤，在事故里，她 失去一个不是尼克的孩子。对尼克来说，这是为西莉亚而放弃的不正当的生意交易。