Alors que la Révolution Chinoise a semé le chaos dans tout le pays, une horde de bandits s’acharne sur les habitants d’un petit village. Son chef, Lung, est recherché pour le meurtre du détective Yeh Chung. Doté d’un idéal chevaleresque, Chien est un vagabond doué en arts martiaux. Son arrivée au village oblige la bande de malfrats à revoir ses plans. Chien est bientôt secondé par Fan Ming, le fiancé de la fille du défunt détective, envoyé par les autorités pour arrêter Lung. Ce dernier a juré de venger la mort de Yeh Chung quel qu’en soit le prix.
A group of bandits flees with a stolen safe to a small town where they oppress the villagers and forces the town's blacksmith Wei Min-hui (Danny Lee) to unlock the safe. Wei refuses to help the bandits and after he informed the mayor about this, he reports to the officials in a nearby village. The bandits were furious that Wei has fled away and starts killing the villagers, threatening them they will kill a villager every hour if they do not find Wei. Finally, the heroes of the town come forward to wipe out the bandits. At this time, Wei also brings a government official to town, who unexpectedly turns out to be an accomplice of the bandits.
Lee (Bruce Lee) is a Shaolin martial artist from Hong Kong who possesses great philosophical insight into martial arts as well as physical prowess. He receives an invitation to a martial arts competition on an island organised by the mysterious Mr. Han (Shih Kien). Lee learns from his Sifu (teacher) that Han was also once a Shaolin student, but had been expelled from their order for abusing their code of conduct.
The film has a similar theme to Drunken Master (1978). The young and undisciplined Jackie (Jackie Chan) undergoes the tutelage of a nomadic master who has a rigorous training style focusing upon the hardening of the fist.
Chan Sing plays a young man, Cheung Da Gong, who travels from place to place earning a living as a fighter. He fights at times on a stage before spectators, as a hired body guard and altruistically to protect shopkeepers from thugs looking to collect protection money.
Hsiao Hu (Jackie Chan) has been secretly training in martial arts, as his father (Tien Feng) has forbidden him. Later, some local store owners ask Ah to help protect them from a greedy Chinese extortion ring. Ah discovers that the crime lord behind the extortion had killed his father years before and is determined for revenge.
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.
In the film, Wendy is a resistance fighter of the Chinese underground who wants to stop Lee Khan from attaining an important map. All of the resistance fighters want to restore Han rule. The villains are Lee Khan and his female partner Wan’er, who want to prevent the resistance fighters achieving vicotry.
Blood Brothers follows two aimless bandits Chang Wen Hsiang (David Chiang) and Huang Chang (Chen Kuan-tai) who attempt to rob Ma Xinyi (Ti Lung). Unable to defeat him, they join forces and are soon thrashing hoodlums and even taking over a nearby group of bandits. But soon it becomes apparent Ma's ambitions far out reach those of his friends, he seeks a position in local government.
Once upon a time, the rover whose name is Ah-Lung became friend with the young man called Tiger and Lung was invited by Tiger to join his family. When he arrived to Tiger`s family`s handyman he enjoyed his new life, however Tiger offended Wong who is short tempered son of a notorious gangster, Lung must protect himself from the gangsters. Later Lung and Tiger forced to join the young women who is pursued by Wong after Wong`s gang killed her family at the acrobatic troupe. Ah-Lung shares his martial art knowledge with his new friends he met in order to defeat Wong and his thugs.
When Chin Fu shows up at a nightclub one night, no one realizes he is the son of a kung-fu master out for revenge for his father's murder. Chin teams up with a sexy lounge singer and heads out to infiltrate the Japanese mafia.
Pirate Cheung Po Tsai sales to a shoreline southern China disguised as a rich trader. There, the villagers live in poverty due to struggle against exploitation and corruption by the government. There he attracts the attention of merchant Xiang You-lin (Tin Ching) and his sister who are keen on killing him for bounty. Cheung then agrees to expedite funds to them in the form of cash and goods stolen from foreign invading colonists.
A roving band of Japanese karate fighters led by a masked, long-haired warrior (Kuan Tai Chen) enter a remote village in China hoping to get their hands on the local supply of "Dragon Herb." There they come into conflict with a group of Chinese kung fu fighters seeking to defend the herb. Tensions escalate, and the Chinese are defeated in several fights with the clearly superior Japanese force. Luckily, help arrives in the form of an outlaw kung fu expert (Chen Sing), who faces off against the Japanese leader in a climactic fight on the beach.