科幻电影《哨兵》内容简介：Years after an alien invasion almost extinguished human mankind, refugee on a secret base on the Moon, three heroes decide to jump into a time travel in the desperate attempt to save the survivors but they don't know that the Sentinel is waiting for them. /有关《哨兵》详尽内容参考《哨兵》豆瓣讨论区