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

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

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

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

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.

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

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

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.

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

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

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.

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

Gretchen's search for her stolen laptop leads her on a journey among the school's delinquents that ultimately brings about her downfall.

T.J. and Vince manage to convince everyone that the bad haircut they gave Mikey is actually cool.

Principal Prickly and Miss Finster plot to turn T.J. over to their own side by making him principal for a day.

Mikey wants to be exactly like Vince when Vince saves his life.

A hypnotist performing for the kids inadvertantly hypnotizes Principal Prickly into thinking he's six years old.

Substitute teacher Mr. E. captivates all the kids with his command of authority, except T.J.

King Bob orders the kids to build him a pyramid so that all future classes will remember him.

Spinelli's parents put her in Mlle. Povlova's dance school, where she teams up with Mikey.

Gus has to go to the Yard of No Return when he kicks a good kickball over the fence.

In the "Pee Wee Pals" program, the main kids each have to take care of a kindergartner during recess.

The Ashleys get back at Spinelli by entering her into the Kiddie Cosmetics Little Miss Blush Beauty Pageant. But her friends talk Spinelli into trying to beat the Ashleys in the pageant.

Mikey is the only fourth grader who still believes in Santa Claus. He tries to convince the others Santa exists.