Arthur and his friends are getting ready for a new day of school, but when it turns out that Arthur has forgotten his homework, it is his (sometimes) annoying little sister, D.W., who saves the day.

Arthur and his friends are thrilled to learn that the rock group BINKY is giving a concert in their town.

When Buster defeats the Brain in a math contest, he is chosen for the school mathathon. Crushed, the Brain says he's decided to become a comedian and declares Buster the new "brain."

Arthur and his friends try to find a substitute to attend the Father's Day picnic with Buster, whose father is not around much since his parents' divorce.

When Buster impulsively drops a Cybertoy into Arthur's backpack in the drugstore one day, he feels so guilty that he finally confesses to his friend and they try to return the popular toy before anyone else finds out.

Arthur's determination to prove he is responsible enough to have a puppy brings him a menagerie of animals to care for.

Arthur and his friends set out to make the world's largest pizza so that their feat can be recorded in "The Book of Incredible and Amazing World Records."

Arthur needs to decide how much he wants to learn the piano after his teacher dismisses him for not practicing.

When Arthur sees advertisements for the amazing doggy Treat Timer, he decides to earn enough money to buy it for his dog Pal.

It takes a really embarrassing moment in the school cafeteria to cure Arthur of his fear of being caught in his underwear.