科幻影片《宇殺員》Inthenearfuture,alienshaveinvadedEarthanddeclaredagalacticwarresultinginthousandsofhumancasualties.TosaveEarth,ateamoffourteenageastronautsbravethealienwildernessofadistantplanettostopanassassinfromchangingthecourseofhistoryforever.