When Gumball has nothing but his Mom's wedding dress to wear for school he realizes that everyone thinks he is a beautiful girl and treat him like royalty, especially Darwin who, unknowing of the truth, acquires a crazy obsession for him.
Principal Brown is concerned about a picture that Anais drew of her family. He decides the family is dysfunctional. Now Nicole has to stay home, Richard must get a job, and the boys work with Mr. Small to vent their energy.
Miss Simian's class finds Principal Brown wrapped up in toilet paper, shaved and covered in green paint. Gumball decides to find out who the culprit is before his entire class (and the janitor) faces detention.