Cindy is an American FBI agent, who is currently in Hong Kong, seeking arch-criminal Kent Tong. In order to bring down Tong and his criminal organization, she teams up with local HK cops, David and Johnny.

He's lost his memory, but not his skill: After a fierce battle with a local tong, Hoi is thrown over an embankment and left for dead. He survives the ordeal but has lost all of his memory, but not his kung-fu. His fateful meeting with a beggar leads to their teaming up for cleaning up that tong.