The one thing Yang fears isn't girly stuff or fighting villains, it is going to see the Dentist. But when Yang neglects his teeth, a magical force falls over him and he develops Wild Hare Tooth syndrome! Even worse, Edna wants to have a non Woo Foo Rabbit for dinner and Carl, desperate for his mothers love, is willing to oblige. Will Yin and Master Yo have to save Yang, or can he figure a clever way out of this situation by himself?