The dynamic duo of Chon Wang and Roy O'Bannon return for another crazy adventure. This time, they're in London to avenge the murder of Chon's father, but end up on an even bigger case. Chon's sister is there to do the same, but instead unearths a plot to kill the royal family. No one believes her, though, and it's up to Chon and Roy (who has romance on his mind) to prove her right.

The Chinese Chamber of Commerce established a Jockey Club during the Republic of China, patriot Jin Guangrong signed the "Seven Wharfs" gambling contract with the Japanese Chamber of Commerce in order to protect the control of the wharf. Ma Yunfei, a hero with superb riding skills became entangled with Jin Guangrong due to someone's framing, and became a murderer overnight. A gamble, a wave of conspiracies, and a fierce and thrilling horse race have made the already unstable Shanghai bund even more turbulent...