末日废土时代，已经没有可供呼吸的新鲜空气，人类大量灭绝，剩余的极少数人类精英通过方舟计划冬眠在地下的庇护所内。两位工程师在此负责起了庇护所的日常维修和危险检测工作，但一切并不是想象中的那么顺利....
遇播放卡顿或无法播放时，可切换线路播放
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