FLASHBACK EPISODE! It's Viv's first day of school, and she wishes to be the Most Popular Person, but it's more difficult than she realized. Meanwhile, Roy, conflicted over his own popularity, wishes for a loyal dog... who happens to bite butts.

Roy unleashes a giant fish monster Codzillard on Dimmsdale in an attempt to convince Viv to stay in Dimmsdale after her best friend from Oldsburg tries to persuade her to move back.

Viv and Roy must resolve their differences and come together to rescue Cosmo and Wanda, and stop Mr. Crocker and Vicky's evil plan to control and take over the Fairy World.