The kids take in a really ratty stray cat that they find near the dumpster, naming it Stuart.

The main kids discover that Gus was once a notorious dodgeball player who went by the name of El Diablo.

Gus winds up the new target of the school bully's wrath.

All the kids go on a big field trip to MISOOE (The Museum of Industry, Science, Oceanography, Oddities and Energy). But Ol' Smokey, the beloved school bus, breaks down in the middle of nowhere.

The main kids wish they could have the overcrowded school to themselves, then surprisingly get their wish.

The original 1935 edition of The Rules of the Playground is discovered in the library.

The kids carry out a crucial experiment to see if it's really true that kissing each other is an inevitable part of their future.

Spinelli will do anything to keep her parents from attending parents' night and meeting the others.

The gang breaks up when they are forced to choose a best friend to write about.

Ashley A. hooks up with Gretchen when she sins against the clique so gravely as to get thrown out.

Gretchen turns to former yo-yo champ Tommy Tate to learn how to master the yo-yo.

When one of T.J.s plans goes wrong and Gus breaks his leg he won't make another plan. It's up to the others to get T.J. back to his old self

A visit from Principal Prickly's brother Paul leads to a challenge between 3rd Street and 98th Street kickball teams.

Miss Finster agrees to babysit Spinelli for the weekend while her parents are away.

When the playground goes on the monsticker standard T.J. goes down the path from poverty to wealth.

T.J. breaks his clavicle and now has to spend recess with the ""pale kids"" in Room 51.

Señor Fusion: the Movie finally opens and T.J. vows to be there at its first screening.

The school gets a new technology system installed called the SAL 3000 which controls everything.

T.J. and the gang meet Mr. Dudicoff, a student teacher who was a legend at 3rd Street School back in the day.

Mikey makes the other kids regret not letting them play on their team for the playground's soccer tourney.

In this Hallowe'en episode, Butch tells us three terrifying tales of Recess. Children of the Cornchip: Cornchip Girl eats some untested cornchips and turns into a werekid! The gang have to save her. When Bikes Attack!: The bikes that the kids ride to school everyday become alive and turn against their riders. Night of the Living Finsters: Lawson challenges Vince to spend the night in the graveyard, only for the gang to discover that the school is built on the Finster family graveyard.

The Ashleys jinx Gus according to the playground rules so that he can't talk until his friends say his name.

Spinelli gets labelled a mama's girl when she inadvertantly calls Ms. Grotke ""Mama.""

Gus finds a tile from the game Ajimbo and soon the entire student body gets caught in its evil grasp.

Principal Prickly and Miss Finster deem T.J.'s word "whomps" as a cuss and punish him for it, starting a scandal that leads all the way to the board of education.