Wang Chun, a veteran diver, is hired to recover a large quantity of gold bars from a ship sunk during the retreat of Japanese soldiers from Hong Kong. But no sooner has the treasure been found, then former Japanese military man, Arakawa, and his men arrive in a speedboat. Arakawa kills Wang's boss, seizes the gold and forces Wang to steer his boat to safety. A struggle ensues. The speedboat sinks after striking a reef. Wang escapes with the gold. He later marries a girl named Yen-yen. They settle down in South Korea, where Wang owns a big ranch. They have a daughter, Shan-shan. 7 years later, Arakawa returns, he demands Wang to hand over the gold bars with Yen-yen and Shan-shan as hostage..

Plain-clothes detective Wang is the best in his trade. One day he stumbles across a young girl's body who apparently is died of abortion. Wang investigates the guilty abortionist who leads Wang to a secret organization called "The Welfare Association". Actually it is an international prostitution racket. Wang sneaks into the association. When he is about to arrest the association's organizer, a girl, Lei, whose sister's death cause by the secret society, saves Wang in certain death. Wang arrests the organizer but has set her free from headquarter. Wang and Lei get together in getting the commander dismissed.

Master Wong (Kwan Tak-Hing) and his disciple Fatty (Sammo Hung) are paying a visit to Thailand when they are assaulted by a hot-headed street fighter dubbed “Little Lion” (Carter Wong). In true Wong Fei Hung fashion, the master takes Lion under his wing after the impetuous youth gets his clock cleaned by a rival martial arts instructor. Meanwhile, Wong’s friend Chu is facing trouble from the local crime boss, who’s trying to seize control of Bangkok’s lucrative shipping business. Wong urges his friends and students to seek a peaceful resolution to their problems, but when the bad guys attack Fatty’s sister (Nora Miao), the master agrees to take up arms.

1930 Manchuria: Seong-Jin, a member of Korean independence army, is arrested and tortured by Suzuki. Seong-Jin’s tells his colleague Min-Wuk the location of funds. Min-Wuk puts the money into the stomach of a dead hog and floats it down the river. Soon, Min-Wuk is captured by Mokosan, a gangster from Peking and Ye-Ji, a barmaid. While Suzuki arrests all of them and kills Mokosan, Min-Wuk, succeeds in arresting Suzuki and escaping, as he continues his journey along the river to deliver the funds.

Unicorn travels to a village troubled by gangsters in search of revenge for the murder of his parents years before. The task is made more complicated when he befriends a middle-aged woman and her son who begin to admire and depend on him.

Qing I-ming springs into action to help his friend, who runs into danger while trying to deliver important government documents.

Dragon and his madcap pal Cowboy spend their days getting into mischief, frustrating the elders, chasing girls, and competing in the village sport. When Dragon overhears a fiendish plot by smugglers to sell China's national treasures overseas, the pair leap into action. Also, Cowboy's wealthy father is kidnapped by the villainous and lethal Big Boss, and the scene is set for a furious martial arts showdown.

An Australian cop heads to Hong Kong to head off the supply of a new designer drug which raises the sexual appetite of anyone who takes it.