The city is ruled by the violent Axe Gang led by the sadistic Brother Sum. Only poverty stricken slums like Pig Sty Alley escape their notice. The place is run by bossy couple landlords. Sing and Bone come into the neighborhood pretending to be part of the Axe Gang. Bone is asleep and Sing is a weakling who can't threaten a child. The real Axe Gang happens to be walking by and it's an all out fight. However, it turns out that there are actually kung fu masters among the poor.

Stephen Chow directs, writes, and stars in this slapstick comedy. It's wacky, stupid, and hilarious. It's a fun use of CGI. It's a simple rogue finding redemption story wallowing in the silliness of the kung fu genre. This is about the silly humor and kung fu action. I love the silly broad humor. I like the wild kung fu action but there may be a little too much of it. After a visually imaginative and engaging opening, it loses a bit of steam but it always picks up whenever it goes back to the Alley. I wish this movie spends all of its time with the weird cast of characters in the Alley.