卧底探员陈凤翔（陈小春 饰）在破获一宗社团大案之后，转任文职八年被反黑组重新招回。由于江湖上最令人头痛的黑社会头目正是陈凤翔当年的小弟张志强，陈重出“江湖”，加入以张少钧（陈国坤 饰）为首的反黑B1-1组与新晋恶棍展开周旋，其中不乏昔日好友与仇家，令陈一度进退两难，好在陈与队友在合作期间培养出互信默契。正值香港回归还有三年，黑帮打算乘势大干一票。陈在调查一宗龙头棍的失踪案件时，却发现了涉及香港黑社会百年历史的惊天大阴谋。

张贵妃产下了一个女婴，为了保住自己在宫中的地位，张贵妃将自己产下的女婴与大学士林进贵夫人同时产下的男婴进行了对调。随后，这名男婴成为了当今太子，而张贵妃亦成了皇太后。林进贵夫人对此十分愤恨，却又无可奈何，气愤不已的她将张贵妃的亲生骨肉抛弃在扬州城的青楼百花楼门口。
一晃眼十八年过去了，当年的女婴被百花楼的妓女金花（宋丹丹 饰）收养，取名芊芊（张庭 饰），长大成人了；而太子正康也亦长大成人。芊芊因为自小在鱼龙混杂的环境中长大，因此身上市井习气不少，但为人善良，热衷于打报不平。这日，芊芊因为在赌场出千，事败后被人追杀。为难之际，她遇到了南七省水陆瓢把子“龙天啸（刘长纯 饰）”龙大侠，并得到了他的相救。这个龙大侠，其实是闲来无事的太子正康微服私访时偷了龙天啸的黑龙旗假冒的。芊芊的传奇武林经历由此拉开序幕！

Kin is a hard-working insurance salesman with a very pregnant wife. When his wife starts haemorrhaging, he calls a taxi, but it leaves when someone else offers more money. After his wife dies, Kin vows to get revenge on all taxi drivers by taking them out one at a time.

1992 film by Eric Tsang

Blackie Tat looks for a new Saint of Gamblers, and finds him in the form of a dimwitted mainlander.

A meek, middle-aged schoolteacher is put in charge of a class of trouble makers. Unable to withstand the torments they put him through, he runs away to a Shaolin temple. At the temple, he studies martial arts under the guidance of an old master. With his new skills, he returns to school and whips his misbehaving students into shape.

OK赖（黎明 饰）以说谎话而为人所知，一天他在便利商店认识了Wonderful（张栢芝 饰）。OK是一名地产经纪，到Wonderful所在的公司洽谈业务，却被Wonderful及其朋友误以为OK是公司老板的一位身家斐然的表弟。OK将计就计，决定要骗着Wonderful，一边跟公司老板的妹妹谈情。Wonderful的父亲欠下了赌债，OK发散了朋友帮助Wonderful还债，令Wonderful感动不已。纸包不住火，最终Wonderful都知道了OK的谎言，伤心离开。OK为了挽留她，承诺以后不再说慌。在Wonderful将要原谅OK之际，OK却被诱惑假结婚以得到高额的报酬……

The well-known "Flying Dagger" Chung and his nephew Lam lived on rewards from apprehending bandits. Chung refused the love of "Great Coquette" Lady Fung. Therefore, Fung always mess up Chung's business for revenge. Flying Fox, the country's number one bandit, had stolen the millionaire Tsao's evidence of being a traitor. Hence, Tsao employed Chung to catch the bandit. Flying Fox's wife, Flying Cat seduced Chung to save her husband, which caused jealousy and a severe fight with Fung. Meanwhile Lam was kidnapped by Tsao. Chung and Fung finally realized that Tsao was the head of East Wing. They united together to beat against Tsao...

1991 film by Wong Jing

1998 film by Raymond Yip

An aging crime boss discovers his rebellious daughter is dating a punk. His former gang members try to bring her back using tricks and force, only to find out the punk is tied to the drug business in America, and is not to be messed with.

Sing and Mei are two siblings with special powers which the former uses to gamble. When both are unavailable, a gangster hires Fanny, a con artist, to compete in a gambling competition.

When the queen of gamblers is killed by her rival, her vengeful spirit seeks out a team of Taoist sorcerers - who use their skills to scam money and gamble, and are known as the Money Makers - to help her get revenge.

The extended Cheng family, which, like Aberdeen harbor's Chinese namesake, represents today's Little Hong Kong and its myriad of contradictions between traditions and modernity; superstitions and materialism; family and individuality.

The movie is based on a true story about a repented gangster preaching the word of God and guiding his brotherhood to turn over a new leaf. Chen once was the leader of the famous gang "The 13 Tsz Wan Shan", he lost his family, lovers, brothers and finally ended up imprisoned for his drug abuse and trafficking. After jail, he devoted himself to save the lost fellows and was selected as "The JCI Hong Kong Ten Outstanding Young Persons". Being respected by the world, Chen is always asked to solve the most difficult situations between evil and good. People give him a nickname "The Fixer". However, there are two sides of a coin, Chen can work out any problem of others, but he does not know how to deal with his personal knot with his love, with whom he has had guilty conscience all his life. Can he fix it eventually?

Lee Rock is now the most powerful person in the police force, but he chooses to retreat, because he knows the rules of the power struggle.

Dragon, an ex-triad member, gets out jail and decides to go straight. However, his old friend Rubbish Pool and old boss Kent usually settles disputes with other gang leaders there, so Dragon has a hard time getting pass his old ways.

Tiger fighter Wu Sung was originally a coward. But when he was drunk, he was extremely courageous. One time at Jingyang Gang, Wu Sung got drunk and killed a tiger. His fearless fight impressed Sung Jiang and Lao Zhishen. Wu Sang's brother Wu Dalang seemed to be an enmity with Pan Jinlian, but in fact they were a pair of swindler. Pan used her beauty to seduce men into bed and then Wu Dalangn would come in and blackmail the victim, asking for huge sum of money. They were very successful.......

Lee Rock starts his career in the Hong Kong police force as an incorruptible officer. However, he becomes desperate for money and slowly starts to dive into corruption.

古峰（吴孟达 饰）和段海（刘江 饰）皆是苍穹派弟子，因为盗取了极乐神功的秘籍，古峰保住了段海，自己却被逐出师门。为了报答古峰，段海收养了他的儿子古玉楼（吴镇宇 饰），对其悉心教导，段海待古玉楼之好，甚至超过了待他的亲生儿子段飞（周星驰 饰）。
一晃眼数年过去，古玉楼和段飞都成长为了壮硕的青年，然而两人的个性却截然相反。古玉楼个性桀骜不驯，自高自大，唯我独尊，为了达到目的不择手段，更为了称霸武林而修炼邪派武功，最终沦落至走火入魔的境地。段飞尽管淡泊名利，只想过安稳生活，却屡屡被卷入江湖的纷争之中，自己的父亲更是死在了古玉楼的手上，段飞决心替父报仇。