The family's van breaks down, stranding them, and the kids get locked in a diner storeroom.
The gang is afraid to go outside after seeing a horror movie. Fern gets help from an elusive author.
The last pages of Arthur's book are missing. D.W.'s friends stop playing with her.
Arthur, D.W. and Buster build sandcastles at the beach. A sloppy Buster learns to avoid germs.
The kids solve a riddle and complete challenges for Zues after failing to stop Hacker in Greece.
The kids must master the properties of symmetry to stop Hacker from destroying all of cyberspace.
Off to Tikiville to stop Hacker from winning a race and help Creech take a shortcut to the finish.
When Hacker traps all the penguins in icy depths, the kids must save them and save their holiday.
Angelina is worried she won't learn as much under her new teacher, but Ms. Mimi's lessons pay off.
Who is using all the water at Franny's house? Arthur and D.W. dig through the attic for valuables.