Personally, I like the third movie best, where the super policeman hits the mainland from Hong Kong and then hits the Golden Triangle.
Chen Jiaju (Jackie Chan) went to the mainland and became a prisoner to infiltrate international arms and drug smuggling groups. With the help of Yang Jianhua (Yang Ziqiong), a beautiful policeman, Ka Kui successfully approaches Bao Qiang (Yuan Wah), a member of the group who is serving a sentence. The leopard regards Ka Kui as his confidant and plans an escape with him. In order to put a long line, Ka Kui readily agreed. After escaping from prison, Bao Qiang advocated returning to Ka Kui's fictional hometown freely. Thanks to Yang Jianhua's prior arrangement, he didn't let the cat out of the bag. Yang Jianhua claimed to be Ka Kui's sister and went with them. They came to Hongkong to meet the boss of the group, Caiba (Ceng Jiang), and became a member of the group. Gewa takes his hand to Kuala Lumpur to rescue his kidnapped wife, and meets Ka Kui's girlfriend Mei (Maggie Cheung). Mei didn't know that Ka-kui was on a mission and thought he was having an affair with Yang Jianhua. Mei's action aroused the suspicion of the group members, and even a big war was imminent!
From 65438 to 0982, the Chinese and British governments began negotiations on the future of Hong Kong. Although both the treaty of nanking and the Beijing Treaty expressly stipulated that Hong Kong Island and Ap Lei Chau, as well as Kowloon and Stonecutters Island south of Boundary Street, would be permanently ceded to Britain, China refused to recognize all relevant unequal treaties, only recognized that Hong Kong was administered by Britain, not British territory, and demanded that Britain return Hong Kong Island and Kowloon together with the New Territories. So I like the third one best.