As strong as Master Yo is, there's a villain even he can't beat. Once a year, a purple anthropomorphic clothed horse with black hair named Badfoot with a voice and personality reminiscent of a funk singer, comes into town to steal Master Yo's Woo Foo. And no matter what Master Yo tries, he has been unable to beat him. Even worse, if Master Yo doesn't fight, the villain threatens to bring harm to innocent civilians. Yin and Yang are determined to help Master Yo this time around and prove to him that every villain has a weakness and can be beat!