Episode 1
Buster returns after a extremely long trip to bond with his father and a nervous Arthur wonders if Buster's trip made him change.
Episode 2
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.
Episode 3
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.
Episode 4
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.
Episode 5
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.
Episode 6
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.
Episode 7
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.
Episode 8
Arthur's class gets picked to be on a television show in which the Brain does not want to go on.
Episode 9
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.
Episode 10
D.W's mom tells the newspapers and everyone in town that story about D.W. and the green chip embarrassing her ultimately.
Episode 11
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.
Episode 12
Everyone gets tickets for a concert starring the new group Binky.
Episode 13
Everyone has a Woogle, the popular new toy... everyone except Arthur. He think that they're dweeby, until everyone else has one.
Episode 14
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.
Episode 15
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.
Episode 16
When Binky steals Buster's joke for his report, Buster has a grudge against him.
Episode 17
When Buster finds an arrowhead in his yard; everyone wants to know if there are treasures in their yards.
Episode 18
When Mr. Ratburn's class goes to a medieval style fair, his old teacher Mr. Pryce-Jones comes with his new class. Mr. Pryce-Jones' class wins all the games.
Episode 19
The Tibble's watch a dangerous superhero show and imitate it. Things get out of hand when they pretend that D.W. is a bad guy.
Episode 20
D.W. wants money to buy a toy, so she plans to trick the tooth fairy so she can earn enough money for it.
Episode 21
Tommy Tibble gets sick and Timmy Tibble gets sad so D.W. and Emily pretend to be Tibbles to make Timmy feel better until Tommy is well.
Episode 22
Arthur and Buster show D.W. that you don't need cameras, lights, etc. to make a music video.
Episode 23
After everyone has told scary stories, everything scares Sue Ellen.
Episode 24
Grandma Thora lends her doll Clarissa to D.W. for a week. She has a lot of fun with her until Clarissa breaks.
Episode 25
When George brings his dummy Wally to school, everyone loves him. But after awhile, they get tired of Wally.
Episode 26
Francine never had a pet until Nemo comes along.
Episode 27
When Mom and Dad begin to fight over spilled milk, D.W. is worried that they might be getting a divorce.
Episode 28
Arthur notices that D.W. is not excited about her birthday. So he tells her about her memories throughout her year as a four-year-old.
Episode 29
Arthur is devastated that he has to clean up his room, and D.W.'s too.
Episode 30
The gang decides to make up another holiday for the wintertime.
