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.

　　

　尚恩在另一个对比的地球担任重案刑警，不同的是那里的科技全都倚靠魔法运作。一次他着手调查一连串怪异谋杀案，犯案手法都是他过去从来未见，因为凭借是科学。他在雷诺，一名崇尚科学更甚于传说和童话的「实用主义」忠实成员，以及130岁的魔法师丘吉尔这两人的协助下，发现层层迂回的内幕，引领他来到另一个时空，也就是我们存在的地球。这时他才发现，如果他不出手阻止，两个地球都会面临毁灭。