『保持站立』介紹:一(yi)批(pi)為美軍研制(zhi)秘(mi)密(mi)武器的科學家神秘(mi)失蹤。Tyler領導的海軍陸戰隊員奉命前(qian)(qian)去(qu)查(cha)明真相,途中遭遇(yu)前(qian)(qian)所未見的強大(da)敵人,一(yi)場大(da)殺(sha)戮開(kai)始(shi)了(le)…… 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.