Lau Ching, a Mainlander with an incredibly powerful right arm, arrives in Hong Kong to find his cousin. He befriends with a drifter named Handsome, and a martial artist girl named Mandy. In order to woo her, Ching participates in a fighting competition in hopes of winning a $10 million prize, and must defeat his love rival, Wai, in the ring.
After being dumped by his fiancé, heartbroken Hong Kong police officer Fallon Zhu gains 200+ pounds. His superiors demote him to the job of escorting convicts to Japan. When a convict in his custody mysteriously dies, he must team up with citizen Thor to solve the mystery.
Star Chow, an officer in the elite police unit, resigns when he is made a scapegoat for a botched investigation. He goes undercover at a school to complete the case and realizes a bumbling detective is also undercover as a student.
Sing, a dumb, lovable mainlander with supernatural powers comes to China to visit his uncle Tat. When it's revealed that Sing can see through objects, Tat employs him as "The Saint of Gamblers," and proceeds to set him loose in the gambling world.
Two best friends and cop partners become the subject of a beautiful news reporter's documentary. The two soon find themselves competing for screen time as well as the love of the reporter while after a murderous arms dealer.