导演：
主演：
未知
剧情：
Ifwefacedacountdowntodestruction,couldwebuildaspacecrafttotakeustonewandhabitableworlds?CanweEvacuateEarth?NGC'stwo-hourspecialexaminesthisterrifyingbutscientificallyplausiblescenariobyexploringhowwecouldunitetoensurethesurvivalofthehumanrace.