Keong comes from Hong Kong to visit New York for his uncle's wedding. His uncle runs a market in the Bronx and Keong offers to help out while Uncle is on his honeymoon. During his stay in the Bronx, Keong befriends a neighbor kid and beats up some neighborhood thugs who cause problems at the market. One of those petty thugs in the local gang stumbles into a criminal situation way over his head.
Hong Kong cop Chan Ka-Kui returns, working with Interpol to track down and arrest an illegal weapons dealer. Chan later realizes that things are not as simple as they appear and soon finds himself to be a pawn of an organization posing as Russian intelligence.
A special agent is assigned to protect a wealthy business magnate. However, when the businessman is kidnapped in a daring ambush, he teams up with a seasoned detective to crack the case. But soon he discovers the case isn't that simple.
