Li Zexing (Stephen Chow), a wealthy Hong Kong kid who is studying in Hawaii, has no academic achievements and spends money like water. He is a campus bully. He is eventually hunted down by the gangsters because he hooked up with the gangster boss's mistress, and his body was blown to pieces. At the request of Li Zexing's father (Ng Man-tat), the professor (Elvis Tsui) artificially restored Li Zexing's entire body and implanted the latest invincible chip into his body, turning him into an invincible "Transformer". After the gangster boss learned that Li Zexing had been resurrected, he implanted a chip with a war program into his subordinate's body, turning him into "Iron Armored Dragon" to hunt down Li Zexing. In order to win the heart of his secret female classmate Chong Chong (Gigi Leung), Li Zexing decided to reshape his image and fight hard against "Iron Armored Dragon".