Shi Yijian (Chow Yun-fat) becomes insane at his daughter's (Tong Fei) wedding due to the misuse of his brother Xiao Ma's (Nick Cheung) "hypnosis therapy" and a robot bomb attack. The mysterious Yi Tianxing (Jacky Cheung) is determined to kill Shi Yijian, but fortunately Long Wu (Heung Wah-keung) leads his son Long Shiwu (Heung Zuo) to rescue him in time. "Gambler" Dao Zai (Andy Lau) and the God of Gamblers' cousin Gao Fei (Chris Lee) also come together to help Shi Yijian recover his memory. Everyone finally knows that Yi Tianxing is the mastermind behind the scenes. In order to investigate the truth, Shi Yijian joins forces with the "God of Gamblers" (Chow Yun-fat), and the final battle is about to begin.