The most deadly fighter on earth, a man so dangerous in combat he only uses one hand, is after the greatest book ever written. This book, a tutorial in the "mantis fist", must be protected by an unlikely band of hero's.

Two agile Hong Kong martial arts kids join up with a pair of bungling Chinese-immigrant beach bums on the sunny shores of Hawaii, where they divide their time between sophomoric kung-fu kid hijinks and their designated mission--tracking down a missing book whose secrets have fallen into the hands of a power-hungry villain.

Cheung Ye Pang (Andy Lau) is a Cantonese detective out to combat opium sellers. Encountering high-level corruption along with close friends being murdered, Pang sets out to stop the dealers.

A group of police women keep the city safe. A normal day day includes everything from battling robbers to going undercover to break up a arms deal that threatens the city.

It's the end of the century at a corner of the city in a building riddled with crime - Everyone in the building has turned into zombies. After Jenny's boyfriend is killed in a zombie attack, she faces the challenge of surviving in the face of adversity. In order to stay alive, she struggles with Andy to flee danger.