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?

　　Moira Cole家人被殘忍地殺害后努力地想要重建破碎的生活，但一切并不會那么容易，因為殺害她家人的正是與她擁有同樣血脈的表弟。

　　熱愛搖滾樂，一心想贏得大賽的阿比阿弟不小心被另一對長得一模一樣的阿比阿弟機器推冥界。在他們大鬧陰曹地府、暢游天堂之后還拖著死神回到陽世，拯救女友的性命···節(jié)奏強烈的熱門歌曲、地獄游歷的驚險怪譚，還有一對胡搞蠻纏的活寶兄弟，就已經使「阿」片夠新鮮熱鬧了，再加上導演創(chuàng)新的拍攝手法，許多趣味的橋段串連，使本片不論在視覺效果、技術處理上皆比上集精進，娛樂效果更有過之而無不及。

 Dorothy, now an elderly woman haunted by her past, tries to warn her granddaughter Emily before dark forces pull her into Oz, a once familiar land now twisted by horrors.