時為1982年，一支隸屬挪威的三人南極科考隊在冰原中行進，意外發現一艘一百萬年前的奇怪船只，并且在附近找到了凍于嚴冰之中的神秘生物。才貌雙全的美國古生物學家凱特·洛伊德（瑪麗·伊麗莎白·文斯蒂德 Mary Elizabeth Winstead 飾）在桑德爾·哈沃森博士（Ulrich Thomsen 飾）的邀請下，隨同一眾科研工作者前往南極。經過認真研究，他們發現這是地球上從未有過的生物。正當科學家們為了這個偉大的發現載歌載舞慶祝之時，神秘生物悄悄解凍，繼而向人類展開兇殘的襲擊。經過一番慘烈的搏斗，怪物最終葬身火海。　　但是厄運并未就此結束，經過對怪物細胞的觀測，凱特隱隱感到一場災難正向全人類襲來……

　　After a collision with a comet, a nearly 8km wide piece of the asteroid "Orpheus" is heading towards Earth. If it will hit it will cause a incredible catastrophe which will probably extinguish mankind. To stop the meteor NASA wants to use the illegal nuclear weapon satellite "Hercules" but discovers soon that it doesn't have enough fire power. Their only chance to save the world is to join forces with the USSR who have also launched such an illegal satellite. But will both governments agree?

　　Allen Meneric is committed to a psychiatric institution for the criminally insane because of a brutal revenge murder. There he is forced to deal with the very ill and the dangerous until, as part of a socialization program, he is transferred to minimum security where he meets Mia, a beautiful bipolar female inmate. Ever haunted by his past, Allen seeks his redemption when sudden events demand that he protect Mia from the violence and chaos of the institution.

　　阿克曼博士是當地一所大學的生物老師，他在被不明飛行物追趕時遇到了意外的死亡。韋斯利，他的一個學生，在吸引女性方面有困難。這一切都發生了變化，當Xenobia女士接管了阿克曼的課程，并說服衛斯理參加一些維生素研究，她和她的助理Drax正在進行。突然，韋斯利變得很有魅力，盡管在興奮的時候，他的腦袋里長出了肉質的天線。他新發現的成功可能會疏遠他真正關心的那個女孩(Leeanne)，而Xenobia的動機可能與她不是這個地球的事實有關。