“X--未知的元素”是一部HD免费观看高清完整版在线播放的影视巨作，“X--未知的元素”由新视觉影视推荐的经典超高人气影视作品，主要讲述了：British Army radiation drills at a remote Scottish base attract a subterranean, radioactive entity of unknown nature that vanishes, leaving two severely radiation-burned soldiers... and a bottomless crack in the earth. Others who meet the thing in the night suffer likewise, and with increasing severity; it seems to be able to absorb radiation from any source, growing bigger and bigger. What is it How do you destroy a thing that feeds on energy