 The Pow Wow Hong Kong detectives, Chau and Beethoven (played by Richard Ng and John Sham), are back once more, this time in a mission to protect a young girl from a gang boss  henchmen. They are trying to kill her so she couldn t testify in court against the gang boss, which will put him away for good. Meanwhile, the plot thickens when a police medical report reveals that Chau apparently has cancer; therefore, Beethoven will see to it that his partner will have a well-deserved vacation in his remaining months.