Fight Back to School 2

Chow Sing Sing (Stephen Chow) just wants his badge back, but after he resigns from the elite police unit as the scapegoat for a botched investigation, the only way to finish the case is to go undercover at a school. Once he is there, Gordon Chan puts him next to Tso Tat Wah (Richard Ng Man-tat), a bumbling detective also posing as a student. Sing Sing has to crack the case with a partner who keeps nearly blowing it.