广东武术界名人黄麒英自儿子黄飞鸿(成龙)小时候起就严格训练其习武,可惜黄飞鸿少年时代年轻气盛,经常用三脚猫功夫在外惹事生非,武学上一直无大的长进。直到某次较量中被人打得落花流水且受到侮辱,黄飞鸿才发誓要拜苏乞儿(袁小田)为师好好习武。 由于苏乞儿懒于收徒,加上对黄飞鸿的人品很不信任,他开出了种种苛刻条件。为表决心,黄飞鸿一一应允并努力将它们全都实现,终以真心将苏乞儿打动,令其将醉拳传授给了他,黄飞鸿渐从一名莽撞的少年成长为一个见义勇为的年轻人。
Based on the novel by Karel Capek, the prominent Czech writer of the early 20th century who coined the word robot for his play R.U.R., the story revolves around a discovery of Krakatit - a powerful explosive - by Prokop, an experimental scientist who, following an accidental explosion in his lab, slips in and out of delirium. When he realises that, in a delirious period, he has given the formula for making Krakatit to one of his colleagues, he tries to find the man, who does not realize how dangerous a thing Krakatit is. In the process, he nearly gives his discovery away again to foreign interests, a group of anarchists, and even greater forces of darkness...
纽顿一家人开著旅行车展开长途探亲之旅,除了一家之主李查以外,其他的家庭成员都以为这会是一段单调无聊的假期,没想到上路没多久,出现了一名意外的旅客──贝多芬,它不但巨大,一直流口水,食量惊人,又擅长闯祸,美好的假期眼看就要演变成一场大灾难。就在贝多芬在纽顿家的地位快不保时,出现了两名恶贼,计画对纽顿一家人下手,贝多芬会如何教训这两名恶贼,保护纽顿一家人呢?