A man kills an assassin by accident and when he gets out of prison, the victim's brother attempts to avenge his death.

Three conmen are assigned to help the Chinese government capture a legendary swindler in Las Vegas and they will not be arrested in return for their aid.

Jersey is a popular gambler in Mongkok. One day, he takes a trip to Japan with her girlfriend, Nancy, they come to Chinese resaurant. Suddenly, a gang of Japanese triads comes in and starts a fight. Just at the moment when he is in danger, the restaurant owner uses a special card - casting skill to save him. Jersey recognize it is the skill of Cool, the Gambling King, but the owner refuses to admit that Cool is still alive. Cool finally admit his true identity and tells Jersey that Ho Yan was orginally his girlfriend but now she is the wife of Yeung. Cool treated Yeung like his brother, but he is jealous of Cool's beautiful grilfriend and wealth. Yeung conspired to take away Cool's everthing. With Jersey's help, Cool decides to get Ho Yan back, but he does not realizes that Yeung is setting another trap for him.

Ka-shing has lived his entire life as a luckless guy, until one day he is offered a job by Spring, a gang brother. Spring is a gambler, and turns Ka-shing's bad luck into a Philosopher's Stone. Kau, Spring's enemy, suffers a huge loss at his casino, and vows to get rid of both of them. Kau orders his men to twist Ka-shing's luck by destroying his Feng Shui. But is it all just a gimmick to win the gambling competition, or will Ka-shing surely lose his gambling abilities?