A band of counterfeiters wants to make Hong Kong their new territory. The disgraced leader of the Special Squad will have to team-up with a group of Hong Kong police officers in an attempt to stop the dirty business of crime lord Han Tin Lung, but Han's problem not only is the interference of the Police force, his Japanese ally Kimura is not happy with his 'cut' in the counterfeit deal and will try to put Donna (a relative of Han) on his side a make Han's business his own property. Both policemen and criminals are highly trained Martial Arts fighters and they will have the chance to prove who has the best Kung Fu techniques
Spoofing the entire 1940s detective genre, and his own performances as a bumbling private detective, Peter Falk plays Lou Pekinpaugh, a San Francisco private detective accused of murdering his partner at the instigation of his mistress, the partner's wife, Georgia Merkle.
The lawyer is visiting a prison to meet with a violent criminal who has been condemned to death. During the visit, things turn bad, there is a riot where prisoners escape and the criminal escapes taking a lawyer hostage.