一批為美軍研制秘密武器的科學(xué)家神秘失蹤。Tyler領(lǐng)導(dǎo)的海軍陸戰(zhàn)隊員奉命前去查明真相，途中遭遇前所未見的強大敵人，一場大殺戮開始了……OnaremoteUSArmyfacilityagroupofscientistsconductingtopsecretweaponexperimentsvanish.AnelitecovertopsteamcommandedbyLt.Tyler(KevinSorbo)istaskedwithrecoveringthemissingpersonnelwithin24hours.Theunitarrivesonlytofindoutthereobjectivemaynotbewhatitseems,whatwasstrictlyasearchandrescuemissionhasnowbecomesearchanddestroy.WithtimerunningoutandthedeathcountrisingTylersteammustbeginthehuntorfallpreytoapredatorunlikeanytheyhaveeverencountered.