Brain Drain / The Big Payback.Brain Drain: Master Yo wants Yang to start using his brain to fight bad guys, but Yang isn't interested. An old floating skull villain named Mastermind, sees a way for him to use Yang's non-interest of using brain power to his advantage. Mastermind tricks Yang into giving up his brain, and Mastermind's brain now takes over Yang's body! With Mastermind controlling Yang, he can fulfill his plans for world domination. Yang will have to figure out a way to use only his brain in order to get back to the Dojo and get his body back before sundown.
The Big Payback: 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!