McDull: The Pork of Music is virtually a musical, describing how the kindergarten, now destitute in HK's depressed economy, forms a student chorus to raise operating funds. The choir, of course, becomes wildly famous, and, guided by shady manager Big M (Ronald Cheng), reaches the apotheosis of HK culture: on stage with superstar Andy Lau.

As the 18th descendant of an extremely insignificant philosopher and inventor from ancient China, McDull is fortunate that he does not have a lot to live up to. However, his mother has higher aspirations for him and decides to send him to a martial arts school in China. Overweight and slow on his feet, McDull is the last of his classmates to run away when the headmaster needs to choose someone to represent the school in an international children's martial arts competition.