Yin has finally thought of a good insult for Carl: He's bugly (because he's a bug and he's ugly). But Carl isn't going to take this insult lying down. he shells out $29.99 for a repulsifier potion from Saranoia and tricks Yin and Yang into drinking it. Now Yin and Yang both look bugly (because they're bunnies and they're ugly). Yang doesn't care about how he looks fighting evil, but Yin does and she takes it hard. / Master Yo wants Yang to learn self-control, but because Yang won't learn it from him, Master Yo takes Yang to learn from Ultimoose, who claims to have turned over a new leaf. While Yang is being forced to fight a giant monster until he learns self-control, Yin has to figure out why her friends are acting so weird and stealing stuff. It turns out Ultimoose isn't trying to teach self-control, he's trying to use mind-control on Yang and his friends with the use of a magic hat.