A textbook meets Jessy with answers for all tasks. He becomes a high achiever on mathematics. Nancy tries to make friends with Penny pretends to be, that hears badly.
Arthur and Polly are appointed to be on duty on crossing. Nancy arrives from Mexico. Someone steals her new bangle. Jessy helps to find out her who did it.
Jessie buys a joke book to gain popularity. Meanwhile, Arthur, in an attempt to find his ring, comes to the lost and found office, where he faces with Polly.
Vinnie and Jesse play a prank on the teachers on the phone with different consequences. Nancy pretends to be Polly's friend in order to get closer to Penny.
Jesse is constantly write off Freddie's homework, as others see Jesse as a moocher and refuse to help. Nancy is dating a nice guy from a private school, but her friends don't believe her.
Nancy is afraid of getting sick on the eve of the sports Olympics and is trying insanely to protect herself from germs. Jesse gets a minor nose injury and uses it to his advantage.
Jessie cuts out pictures from the school encyclopedia for his report and tries to hide it. Arthur is forced to perform his solo song for a school performance along with Polly.
Wanting to impress Penny, Nancy switches to a healthy diet and enlists her friends in it. Meanwhile, Freddie invites his classmates to an amusement park for his birthday, but no one wants to go except Jessie and Vinnie.
The school holds a competition for the best science project. Penny and Nancy test insect repellant, Jessie and Vinnie force their parents to do a project for them, and Freddie is forced to work with Polly on her spoon project.
Jesse and Vinnie start using swear words at school after some tough boys curse at them for playing a babyish video game. When Polly catches them, they must stop swearing to don't let Mr. Besser and Miss Graves call their parents. Meanwhile, Nancy and the girls play many games to choose the first pair to play ping-pong.
