The Big Problem:
While at school Timmy Turner is picked on by Francis, the school bully, because he is too small. At football tryouts, Timmy's position has to be the ball because of his At home, Timmy's parents are going out to a movie which they think that he is not old enough to see. Vicky has to babysit and commands Timmy to go to bed at an early time. In his room, he thinks of all of the things that he can do as an adult. He thinks of helping old ladies cross the street, picking on Francis, and not needing a babysitter. Timmy wishes that he was an adult, but looks at himself in the mirror as gross. He wishes that he had hair on his head, but Da Rules say that fairies only grant wishes to kids. Despite his looks, he tries cool adult things. However, he realizes that driving is boring, helping old ladies cross the street as an adult is creepy, adult movies are gross, and that shaving and cologne hurt. Timmy goes to a restaurant an orders food on the adult menu, but he can't pay the bill and has to work at the restaurant for the rest of the night. He tries to go home, but Vicky thinks that he is an intruder and kicks him out. Vicky goes upstairs to check on Timmy and sees that he is gone. When Timmy's parents come home, Vicky fakes that Timmy is missing. Timmy goes to the football field and sleeps in the stands. The next day, Timmy tries to stop Francis from bullying Chester and A.J. by plucking him in the head. However, Francis fake cries in front of the police. The police chase him down, until Cosmo and Wanda hide him from the police. Afterwards, a fairy declares that Cosmo and Wanda have to be re-assigned to a mean and scary kid because Timmy isn't a kid anymore. Timmy gives the fairy five dollars so he can spend two more hours with Cosmo and Wanda. Timmy has an idea: if he acts like a kid, he can become a kid again. Timmy tries various childhood activities, such as mini-golf and riding kiddie rides at the grocery store. Because of his creepy activity, the police put Timmy in jail. He has one phone call and calls his parents, but they don't believe him. The fairy comes back and says that someone in the jail cell has to help the new kid, but Timmy cries and wants his mom and dad. According to the kid thermometer, Timmy is acting like a kid and wishes that he was a kid again. The wish works and the fairy has to help the new kid. Timmy gets out of jail and goes home with Vicky, who was worried about Timmy because something could happen to her if something happened to Timmy. When he goes back to school, Timmy is not bothered by Francis' jokes and realizes that being a kid is great.