When petty criminals start turning up murdered, a detective discovers they are being killed by a group of his fellow officers who think the criminals were treated too leniently by the courts.
Chan Wai Man is a ruthless cold contract killer working for an organisation headed by Ku Feng, whose inevitable aims are to protect his drug dealing network.
An Italian prison official's wife is kidnapped, and the kidnappers demand that a notorious prisoner be released in order for the man to get his wife back. He gets the man released - but then kidnaps him himself, in order to ensure that the man's colleagues don't kill his wife. Enraged, the gang sets out to free their compatriot and kill the man who took him.
Kung fu sensation Cheung Lik stars as the rough and ready kung fu kid who is tricked into robbing a triad boss. Amongst the things he steals is a contract for opium distribution between the triad boss and the Japanese Yakuza. Now the stage is set for some hate! The triads and the Japs send out all their top fighters to get the list back off the kid before he goes to the police with it.
Ah Lung is a decent law abiding citizen armed with deadly martial arts skills. He soon discovers he has a brother who is a gangster, Man Ho. All martial hell breaks loose when he tries to meddle in the gangs affairs.
Incriminating evidence against a gang is left in a cab when a gang member dies in it. The gang chases the innocent cab driver, who receives help from the dead gangster's sister - a tough police woman.
When various trustees of the Van Traylen Orphanage begin dying in close order, it's at first written off as a coincidence. But, when a school bus accident very nearly takes out three more of them along with a group of orphans, Col. Bingham and his pathologist friend, Mark, begin looking into the deaths. They come to think the answer lies with one of the girls on the bus, who has vivid memories of things she could not possibly have seen.
Two petty adolescent street urchins Lo and Lung become inseparable sworn brothers who survive the cruelty of the streets. They are separated after Lo gets caught by the law trying to steal food. Years later, Lung grows up to be an enforcer for a gambling syndicate not knowing that it also fronts as a narcotics ring. To contrast Lo is raised in a law enforcement household and is sent out to investigate drug activity in the region. They reunite under a fragile alliance on the opposite sides of the law as their interests spiral into collusion. Things turn deadly after drug boss Ma retaliates by having Lo's stepfather killed and framing Lung for the deed.
The fast career of a young Neapolitan among contraband, gambling dens, bribes and illegality. He will upgrade its rank till the maximum level of the "Family".