Mr. Ratburn assigns partners for a project and Arthur gets teamed up with Muffy. After spending a lot of time with her, he starts to act just like her.

Someone has been writing "Binky Rules" all over Lakewood Elementary and Mr. Morris thinks it is Binky. Binky says he didn't do it, so Fern and Buster are trying to find out.

Buster feels left out having missed all the adventures since he was away. He feels that everyone has changed and they feel the same about him, so Arthur plans a party so they can rekindle their friendship with Buster.

D.W. eats a big green potato chip and to get her off his back Arthur tells her that it's fatal and she could die. So D.W. spends this day as her last day until she finds out the truth.

Francine's convinced that she can fast on Yom Kippur just like her older sister. But then Arthur wins a free pizza party for all his friends for that very same day! Will Francine be able to resist?

D.W. loves school and wants to go everyday, but when Ms. Morgan starts doing fire drills she fears for her safety and doesn't want to go anymore.

Mr. Ratburn assigns a project that involves family ancestors. Muffy and Francine turn this project into a competition to see who has the best ancestors.

Sue Ellen gets partnered with Brain in another project by Mr. Ratburn. Soon he starts to be a report hog and gets on Sue Ellen's nerves.

Buster returns after a extremely long trip to bond with his father and a nervous Arthur wonders if Buster's trip made him change.

After Fern and Sue Ellen take a quiz in a teen magazine, they change the way they act. Fern turns loud and aggressive, while Sue Ellen falls back in everything.

Aria, a silent girl in Mr. Ratburn's class, finally gets a chance to speak when she is appointed a school news anchor.

The Tibble Twins can do everything better than D.W. So she tells them that she is able to read before them. They challenge her and she picks up a book and makes up a story, but when the Tibble's bring the book home for their Grandma to read to them her trick is revealed.

After one of Mr. Read's scrumptious desserts makes Arthur the most popular kid in class, Arthur can't stop asking his dad to cook. Despite his dad's busy catering schedule, Arthur promises delectable desserts to anyone and everyone.

Sue Ellen is the champion of the popular Internet game Virtual Goose. She becomes so obsessed, however, that she starts imagining her friends as geese to be conquered.

Mr. Sipple from next door is moving away and Arthur wonders-who will be the new neighbours. When Alberto Molina and his family settle in, Arthur makes a new friend and learns about a different culture.

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The try-outs for the Young Person's Orchestra are coming to Lakewood Elementary. Everyone agrees that Binky is a shoe-in since he's the best musician in school.

Arthur is umpiring a baseball game against Mighty Mountain and he has to decide whether Buster properly scored a home run.

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Arthur's class gets picked to be on a television show in which the Brain does not want to go on.

D.W's mom tells the newspapers and everyone in town that story about D.W. and the green chip embarrassing her ultimately.

Everyone gets tickets for a concert starring the new group Binky.

Everyone has a Woogle, the popular new toy... everyone except Arthur. He think that they're dweeby, until everyone else has one.

Buster is convinced that he's seen real UFOs, and he uses Muffy's fancy new telescope to get the proof.