Ma Hon Keung (Jackie Chan), a Hong Kong cop comes to New York to attend the wedding of his Uncle Bill (Bill Tung) who introduces his new, African-American wife Whitney to him down at his supermarket, which he owns and has sold to Elaine (Anita Mui). Uncle Bill's friend, Steven Lo (Jamie Luk), loans him a vintage automobile for the wedding. Later that night, a street gang starts a motorcycle race near Uncle Bill's apartment. They are about to run over his friend's car until Keung jumps down and stops them. He soon starts a rivalry with the street gang when he drives them away from the supermarket that they were robbing and vandalizing. This starts a series of brawls in which the bikers try to corner Keung and finish him off. When a member of the street gang named Angelo (Garvin Cross) gets involved in an illegal diamond deal gone bad and steals the diamonds, the small-time gangsters become the victims of a much larger and more effective criminal syndicate led by White Tiger (Kris Lord). While running away with the diamonds, Angelo leaves them in a cushion, which is unknowingly used by Keung for the wheelchair of a disabled Chinese American boy named Danny (Morgan Lam), who is raised by his elder sister Nancy (Françoise Yip), a lingerie model/dancer who works in a seedy bar and is an associate/girlfriend of the bikers. Keung befriends Nancy and advises her to stay away from crime. When the gangsters see this, they chase Keung and Nancy. After failing to confront Keung, the bikers turn up at Elaine's supermarket and start vandalizing it, during which two of Angelo's men are captured by White Tiger's men, who turn up at the supermarket in search of Angelo. Angelo's colleagues are unaware of his diamond heist and one is executed in a tree-shredder; his remains are given back to the other gangster to show to his friends as a warning to return the multimillion-dollar goods. In the meantime, Keung and Nancy go to the bikers' shed after the latest supermarket attack, and Keung defeats them in another brawl, at which point the shredded remains are brought back.
Twelve-year-old Dre Parker and his mother Sherry move from Detroit to Beijing after Sherry gets a job transfer at her car factory. After a day in a park, Dre develops a crush on a young violinist, Meiying, who reciprocates his attention, but Cheng, a rebellious kung fu prodigy whose family is close to Meiying's, attempts to keep them apart by violently attacking Dre, and later bullies him at school. During an attack, the maintenance man Mr. Han comes to Dre's aid, revealing himself as a kung fu master.
The story is set in the Valley of Peace, a fictional land in ancient China inhabited by anthropomorphic animals. Po, a giant panda, is a kung fu fanatic who idolizes the Furious Five — Tigress, Monkey, Mantis, Viper, and Crane — a quintet of kung fu masters trained by the red panda Master Shifu. As he helps his goose father Mr. Ping in his noodle restaurant, Po is unable to pursue his dream of becoming a kung fu master himself.
An opening prologue set years before the events of the first film tells that Lord Shen, the scion of a peacock clan that rules Gongmen City in ancient China, seeks to harness fireworks as a weapon. After discovering from the court's goat Soothsayer that "a warrior of black-and-white" will defeat him if he does not change his ways, Shen leads an army of wolves to exterminate the panda population to avert the prophecy. Shen's parents are horrified at this atrocity and exile their son, who swears revenge.
In nineteenth century China, Jungle Village is home to several warring clans. The village blacksmith creates deadly weapons for the clans, intending to use his payments to purchase the freedom of his lover Lady Silk, and leave the village. The region's governor tasks the Lion Clan's leader Gold Lion with protecting a large shipment of gold that must pass through the village. Gold is betrayed by his lieutenants Silver Lion and Bronze Lion, who plan to steal the gold. They use the chaos ensuing from a fight with the Hyena Clan to allow their co-conspirator Poison Dagger—the governor's aide—to assassinate Gold, after which Silver becomes the Lions' leader. Gold's son Zen-Yi learns of his father's murder and sets off to the village to seek revenge.
Thaddeus the blacksmith is on his way to the monks at Wu Chi Temple on a quest on inner peace when he is attacked by the brother of Silver Lion and his henchmen. Thaddeus manages to defeat them all but receives a near fatal wound from Silver Lion's brother's claw. He succumbs to his wounds and is seen drifting on a log down a river.
Little Mute (Jackie Chan) is a new Shaolin student who is mute. He struggles to keep up with the other students and to complete the grueling tasks assigned to him by his instructor. He is haunted by the memory of his father's murder at the hands of a masked bandit who was skilled in martial arts.
Yi-Lang est un jeune orphelin élevé dans un temple de Shaolin. Une nuit, le livre des "7 Commandements", un manuscrit ancestral dans lequel sont décrites des techniques de combat très puissantes gardées secrètes, a été dérobé. Un moine aveugle demande à Yi-Lang de découvrir qui est le voleur car lui seul peut rivaliser avec lui en utilisant la technique des "5 Forces"...
A young student named Liu Yude, later known as San Te, is drawn by his activist teacher into the local rebellion against the Manchu government. The government officials suppress the uprising and liquidate the school, killing friends and family members as well. San Te then decides to seek vengeance. Wounded in an attack by Manchu henchmen, he flees to the Shaolin temple and seeks training in kung fu. Initially the Buddhist monks reject him, since he is an outsider, but the chief abbot takes mercy on the young man and lets him stay. One year later, he begins his martial arts training in the temple's 35 chambers and advances more rapidly than any previous student. Along the way, he is depicted as inventing the three section staff.
In early 20th century Shanghai, Chen Zhen returns to Jingwu School to marry his fiancée. However, tragic news awaits him: his master Huo Yuanjia has died, apparently from illness. Chen is deeply saddened and traumatised by the sudden demise of his teacher. During the funeral, people from a Japanese dojo in Hongkou District arrive to taunt the Jingwu students. Wu En, the Japanese dojo's grandmaster Hiroshi Suzuki's translator and adviser, taunts Chen by slapping him on the cheek several times, and dares him to fight him. Then the Japanese students, along with Wu, leave. Shortly thereafter, Chen goes to the Hongkou dojo alone to engage in a fight. Chen defeats all of them, including the students' master.
In Rome, Chen Ching-hua and her uncle Wang experience trouble with their restaurant from a mob boss who wants their property. When Chen refuses to sell, the mob boss sends gangsters to scare away customers. Appealing to an uncle in Hong Kong, Chen receives help in the form of Tang Lung, a martial artist. Disappointed, Chen asks how he can help her, but Tang confidently assures her that he is capable. At the restaurant, Tang learns that the staff have begun to learn karate, much to the annoyance of Quen, an employee who favors Chinese martial arts. Tang tells Quen that he should be open-minded and incorporate any moves that work. Before Tang can demonstrate his style to them, customers arrive, and the staff change clothes.
Hing Lung (Jackie Chan) is a youngster, living in a remote village with his grandfather, kung fu master Chen Peng-fei (James Tien). Lung does not take his training seriously enough, he gambles, and he gets into fights which lead him to display the skills his grandfather has told him he must keep secret.
Wei Fung (David Chiang), a young scholar recruited by the Emperor to infiltrate a group of rebels in the Tien Clan in order to get evidence of the clan's connection to Ming loyalists, the rebel spy network and anti-Ching activities. If Wei fails in his mission, his own well-connected family will be punished.