In the late 19th century China during the Qing dynasty Chinese sovereignty is being eroded by foreign imperialism. Empress Dowager Cixi and Li Hongzhang decide to stage a lion dance competition to showcase Chinese martial arts and restore national pride. Interested parties from all over China are invited to participate and compete for the title of "Lion Dance King".
Wong Fei-hung travels by train from Foshan to Beijing with his romantic interest 13th Aunt and apprentice Leung Foon to meet his father, Wong Kei-ying, at the Cantonese Ten Tigers Association. At the train station, 13th Aunt meets Tomanovsky, a Russian diplomat, who was her classmate when she was studying in Britain. He starts vying for her attention and annoys Wong, who is disgusted by the Western custom of kissing a woman's hand. When Wong reaches the Association, he learns that his father has been attacked by a wealthy rival martial artist, Chiu Tin-bak, and Chiu's henchman, Clubfoot. Luckily, the elder Wong sustained only minor injuries. Wong Kei-ying decides to give his blessings to his son and 13th Aunt when he sees their romantic relationship.
Before the competition officially begins, all the lion dance troupes that have gathered in Beijing are already fighting among themselves and holding another competition of their own. Wong does not participate and spectates instead. Unknown to him, Leung and his friends have secretly joined the competition out of mischief. A short chase takes place between Clubfoot and Leung when the latter annoys the former during the contest and flees. Clubfoot's legs are crushed when Leung accidentally releases a stampede of horses from a stable. Chiu abandons Clubfoot when he sees that he is now a useless cripple. Wong takes pity on Clubfoot, brings him in, and heals his legs. Clubfoot is initially hostile towards Wong, but he feels so touched and grateful to Wong that he starts bawling emotionally, and becomes Wong's new apprentice.
With the aid of a camera given to her by Tomanovsky, 13th Aunt inadvertently uncovers a plot to assassinate Li Hongzhang during the competition and learns that Tomanovsky is one of the conspirators. She warns Wong, who joins the contest to stop the assassins. In the final round of the competition, Wong, Leung and Clubfoot fight with dozens of rival lion dancers as they battle their way to the top of a scaffold. Chiu also joins the competition and carries a large and deadly lion mask. Wong ultimately defeats Chiu and wins the competition.
In the meantime, Tomanovsky fails to assassinate Li Hongzhang and is shot dead by his fellow Russians, who claim to the Chinese that he was a spy working for the Japanese. Although Wong wins the prize (a gold medal) he remarks that it is ultimately a defeat for the Chinese because of all the infighting. He then tosses the medal back to Li Hongzhang, turns his back and walks away.
On Rotten Tomatoes, Once Upon a Time in China III got 67%, based on 9 reviews[2] while Marc Salvov of The Austin Chronicle gave it 2.5 out of 5.[3] Panos Kotzathanasis of the Asian Movie Pulse said that "[the film] is the most personal film of the trilogy".[4]
The film was released in Hong Kong on VHS by Paragon Films in 1996. The opening is in Mandarin while the rest of the film is in Cantonese. It was converted from a LaserDisc and some chapters are incorrectly arranged. The film was released again in Hong Kong on DVD by Hong Kong Legends on 21 January 2002.
The Taiwanese release of the film is in Mandarin and has 15 minutes more footage than the Hong Kong version. It was distributed by Long Shong Pictures and features a 4:3 cropped image with embedded Chinese and English subtitles, and the distributor's logo on the upper left corner of the screen.
Both the Hong Kong and Taiwanese versions were released on DVD in North America by Columbia TriStar. There is also an English export version of the film called The Invincible Shaolin. In comparison with the original version, the end credits of The Invincible Shaolin are in English and some footage is cut out.