If we faced a countdown to destruction, could we build a spacecraft to take us to new and habitable worlds? Can we Evacuate Earth? NGC's two-hour special examines this terrifying but scientifically plausible scenario by exploring how we could unite to ensure the survival of the human race.

《末日倒数 地球大撤退》是由热门电视剧免费发布，提供完整版高清在线观看。