If you know Donnie Yen & don't know this film I highly recommend you go out and source a copy. This has some brilliant fight scenes and the usual campy goof scenes of early Donnie films and is a must have for martial arts film fans. Donnie's role is small, yet is pivotal, and he's the one who gets to battle head villain Collin Chou at the end. I think this is the only time the 2 of them get to punch on previous to 'Flash Point'. The plot concerns three teenagers, each holding a piece of jade which combine to form the key to treasure. Donnie is his regular loose-cannon policeman.The fight with Billy Chow is short, but great, as expected.In short, if you're after a kick ass old Hong Kong (tho this is Taiwanese) style flick, chuck on your screen.