邓小龙（许冠英 饰）从小就为人正直、乐于助人，他的志愿就是长大了能当一名除暴安良的好警察。无奈天意弄人，他因身材矮小，而且天生色盲，于是被警局拒之了门外，他只好去保安公司当了一名护卫员。保安主管周世昌（许冠文 饰）是一名老油条，为人尖酸刻薄、贪生怕死。下属阿Sam（许冠杰 饰）一早就看他不顺眼，只是有冤无处申。 这次，公司的太子王平凡从国外留学回来，假扮保安混进了公司考察情况。不久阿Sam和小龙就因工作出色而获得提拔，而周世昌却被剥夺了主管之位降职任用，还有几个月就可以退休享受的他会为了退休金忍下这口恶气还是会另有所谋？
城南是个黑手党活动盛行的地方，有两个帮派，一个住在AliBhai，控制古鲁和莫娜等男女巫的活动，另一支由当地雇佣兵组成，两派都对当地的包工头和土地占有者收保护费、或直接占有他们的地产，当然若有不从，则施以暴力，敲诈甚至杀死他们。长官Mohamed Maideen Khan来做城南的执政者了，他开始清理这些黑帮……华丽火爆的性感歌舞........
Siskel and Ebert once ran a special show entitled "Movies I'm Embarrassed to Admit I Liked." I suppose that if I composed such a list of guilty pleasures, this one would be one of them . . . but upon reflection, it's really a lot better than that. Fifteen year-old science prodigy Mitch (Gabe Jarret) is recruited by ambitious college professor William Atherton (in yet another of his patented roles as a loathsome character) to work on the professor's prize laser project, not knowing that the prof is really developing a government weapon. Along the way, Mitch is befriended by Chris (Val Kilmer), another prodigy a few years his senior who teaches the Mitch how to loosen up. This could have degenerated into nothing more than just another teen revenge comedy, but there's so much more: the dialogue is laced with sharp wit there are some lovely scenes that have nothing to do with the story yet are carefully set up, almost as blackouts (e.g., Mitch goes to a lecture at which a few students have left tape recorders instead of attending later, at another lecture there are more tape recorders than students and, in a final scene, one large tape recorder gives the lecture to a room populated by nothing but other small recorders!) and throw-away scenes that make you want to stop and back up the tape (e.g., Chris off-handedly cutting a slice off a bar of solid nitrogen to make a slug for the coffee machine). It's also one of the few movies to boast the presence of the memorable Michelle Meyerink -- as Jordan, the "girl-nerd" who made being smart and female something to be emulated. And there's Tears for Fears great song, "Everybody Wants to Rule the World" providing the perfect coda as the closing credits begin to roll . . . . Yes: really now, what's there to be embarrassed about?
