Lee and Carter are back, and this time they're in Hong Kong. Carter wants a relaxing vacation but Lee just wants to do police work. At a night club, Lee spots an evil agent named Ricky Tan, who runs an evil gang of counterfeiters, and his partner is a woman who delivers packages containing bombs. Lee and Carter follow these two aboard a boat where their attempted bust really busts, so Lee and Carter fly back to Los Angeles where they meet a woman in the Secret Service who helps them on their mission to find the counterfeiters. Lee and Carter are captured by the bad guys but soon escape into a sewer come emerge in downtown Las Vegas.