Episode Title:The Beak.Episode Description:When Phineas and Ferb build a super suit, they decide to become a superhero called "The Beak" to defeat a new villain named Khaka Peu Peu. But when Phineas keeps leaving to be The Beak, drama starts between him and Isabella. Meanwhile, Dr. Doofenshmirtz is temporarily given the mayoral post by his brother Roger to prevent Roger from being blamed for Khaka Peü Peü's presence.