近未来，碌碌无为的私家侦探詹明瑞接到了胡珊的委托，寻找失踪的丈夫，科技大亨，严柯。而此时，民众正在抵制严柯公司推出的仿生人产品，因为仿生人不仅外表和人类无异，而且会替代人类劳动力。 詹明瑞几经周折地找到了失踪的严柯，他被绑架，巨大的精神创伤导致失忆。秉持着好人做到底的原则，詹明瑞决定帮助严柯进行心理治疗，并希望查出绑架犯的线索，来为自己的侦探生涯增光添彩。但随着调查，詹明瑞却发现这个严柯身上充满了疑点，极有可能是仿生人。詹明瑞警告胡珊远离这个“严柯”，但反而遭到胡珊的怒骂。这个严柯的身份究竟是不是仿生人，而胡珊心里又在计划着什么？
The boisterous, arrogant professor Challenger, a reputed biologist and anthropologist, dares the London Zoological Society to mount an expedition to verify his spectacular claim, without physical proof, that his previous expedition to the Amazonian basin found live dinosaurs. Apart from him and his 'socialite' counterpart, professor Summerlee, it consists of experienced discoverer Lord Roxbury, the young reporter Ed Malone -who got publicly struck down with Challenger's umbrella at his arrival- and Jennifer Holmes, Malone's news agency's boss's daughter, essentially as conditions for putting up the money. In Brazil they are joined by Jennifer's brother David and local 'guide' Manuel Gomez. They soon discover the dinosaurs are real and dangerous, like giant spiders, but loose their helicopter and thus are desperate for a way down from the isolated plateau. They learn Roxbury knew about the fate of Burton White, an explorer whose diary they find, thus presume to be dead, in search of diamonds, and confirmation of the local tribe being the lethal guardians of the plateau's secrets, but also get surprising help...
为了寻找失落于地球的量天仪宝珠，太空城族长扎尔塔（彼德·奥图 Peter O'Toole 饰）派遣女超人卡拉（海伦·斯雷特 Helen Slater 饰）前往地球。此时的宝珠落到了邪恶的女巫赛琳娜（费·唐纳薇 Faye Dunaway 饰）的手中，为了炫耀这价值连城的宝 物，赛琳娜举办了一场晚会，而这就是卡拉夺回宝物的最佳时机。卡拉的举动惹恼了赛琳娜，她设计将卡拉骗至恐怖城，夺走了她的力量与自由。 得知卡拉遇险，扎尔塔前来营救，却不想命丧赛琳娜之手。悲愤的卡拉想方设法逃脱了赛琳娜的桎梏，为了给死去的扎尔塔报仇，为了夺回珠宝，为了维护世界的和平，卡拉做好了准备，要与赛琳娜展殊死搏斗。
