When a parent group bans a series of scary books from the local public library, Arthur and his friends devise a plan to get their favorite books returned.
After Buster defeats the Brain in a math contest, the Brain declares Buster the new brain and decides to become a comedian, until his friends convince him that he is still as smart as ever.
Unhappy about how much homework they have to do, Arthur and his friends dare each other to skip school, but their plans go wrong, leaving Francine to suffer the consequences.