New kid Gus arrives at Third Street Elementary, but has to endure the indignities that a new kid must undergo.

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.

The kids stage a protest when Principal Prickly plans to tear down Ol' Rusty to replace it with a new jungle gym.

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

The others try to help out when Mikey wants to be a safety ranger.

The Ashleys try to force Spinelli to be just like them when Spinelli's first name is revealed.

The kids help bring Miss Finster together with Hank the janitor when they find out she has a crush on him.

Bob installs Gus as a substitute king while he has a tonsilectomy, figuring Gus will be easy to control - but Gus turns into a despot instead.

The kids, and Vince himself, come to the awful realization that Vince's once popular older brother Chad has grown up into a geek.

The kids come up with a plan to keep Gretchen from being transferred to Oppenheimer Elementary for the Incredibly Extremely Gifted.

The kids stage an elaborate funeral for the 4th grade class's beloved hamster, wherein they learn about how many lives the hamster has touched.

Vince completely loses his confidence at playing kickball when Ashley Q. beats him in a game.

A weird little boy keeps tagging along behind the kids, apparently causing a streak of bad luck.

Jeffrey, an annoying jerk of a boy, insists that Gretchen will be his girlfriend.

What do the kindergarteners have planned for T.J. when they capture him?

Miss Finster comes up with a new punishment that reduces T.J. to a vegetable.

Randall accuses Spinelli of hitting him with a rock during a dirt clod war so the kids put her on trial.

The kids dream about what the teachers' lounge must be like.

Loneliness compels Randall to want to make friends with the other kids.

The kids grow increasingly frustrated when rain keeps then indoors for recess days on end.

At first only Mikey wants to participate in the Thanksgiving can drive competition against the unbeatable Ashleys. But then the other kids join in to beat the Ashleys.

Principal Prickly needs Mikey to sing the National Anthem at the PTA Spring Fling, but Mikey only sings well in the bathroom. So he brings in a music teacher to bring the Robert Goulet out of Mikey.

The kids deal with a pompous expert on child research who wants to study them as they play.

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

Spinelli is inspired to form a cult based on the Swinger Girl when she thinks she's seen her swing over the top into another dimension.