剧情描述一家研究DNA遗传工程的药厂实验室将小精灵加以实验，结果制造了一群破坏力强烈的怪物，将大楼搞得人仰马翻，男女主角费尽九牛二虎之力才把这群怪物消灭。

　　The Jetsons have made their film debut in a film about family, friends, and all that stuff. George's tightwad boss, Mr. Spacely, is determined to get his remote factor on his ore asteroid miles away to make 1,000,000 sprocketts, but all the vice-presidents sent to run it have disappeared for some reason, so Mr. Spacely must find someone else to run it: it would have to be someone mighty brave, and mighty stupid. So who does he pick? George Jetson. So George packs up his family: Jane, his sensible and loving wife; Judy- his rebellious teenage daughter who's gotten a new boyfriend: a super galactical rock star; Elroy- basketball champ who's losing faith in his father; and Rosie, his sassy maid. So while Judy meets another boy and enjoys a huge shopping mall, George sets off to work with his new friend, a robot foreman named Rudy 2. The factory is soon sabotaged on opening day, so George intends to investigate and disappears. So it's up to Elroy and his new friends to rescue George. Along for the ride are Judy and Jane. A wild futuristic romp on a screen bigger than your TV

　　一千年前的布列颠群岛上，当时王刚登基为王。当邪恶的罗勃和他残暴的助手格利分抢走亚瑟王的石中剑亚瑟王的石中剑石中剑掉在一座浓密可怕的魔法森林；凯莉是一个好胜心强的女孩，她硬著头皮闯进去……

　　杰克（加布里埃尔·伯恩 Gabriel Byrne 饰）是一名漫画家，却因为行差踏错而被关进了监狱。在铁窗后，杰克依靠着画漫画来派遣内心的痛苦，他创作了名为《冷酷世界》的连环画，并且在连环画里设置了一个名为霍利（金·贝辛格 Kim Basinger 饰）的反派女性角色。哪知道故事里的霍利竟然利用杰克来到了现实世界，而漫画里的另一个人物侦探弗兰克（布拉德·皮特 Brad Pitt 饰）则警告杰克一定不能受到霍利的诱惑爱上她，否则，现实和漫画这两个世界都将毁灭。
　　可是，霍利实在是魅力无穷，杰克不由自主的深深被她吸引，坠入爱河。就这样，两人在拉斯维加斯展开了一场精彩绝伦的拉锯战。

　　高谭市的黑暗势力又开始蠢蠢欲动了，这次是毁了半边脸的“双面人”（汤米•李•琼斯 Tommy Lee Jones 饰）。一次，“双面人”袭击了马戏团，演员迪克（克里斯•奥唐纳 Chris O'Donnell 饰）阻止了“双面人”的阴谋，家人却因此惨遭杀害。
　　布鲁斯（瓦尔•基尔默 Val Kilmer 饰）收留了迪克，并说服了满腔仇恨的迪克留了下来。因研究计划被拒绝而仇视韦布斯的公司职员爱德华（金•凯瑞 Jim Carrey 饰）成功研究出脑波吸收装置，化身成为“谜语侠”。
　　“双面人”和“谜语侠”联手破坏高谭市，并通过脑电波吸收装置大量吸收市民的脑电波。蝙蝠侠这次的对手强大得可怕，蝙蝠侠最终能否战胜罪恶？