Arthur is looking forward to having his friend the Brain spend an entire weekend at his house, but then the Brain shows up and starts acting a little too much like the perfect family member.
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."
Rufus, a young wolf, has a hard time fitting in at the Big Bad Wolf Academy where he has been sent to learn to huff and puff until the day he uses his true talent.
When Arthur's soccer team gets a new coach who gives them brand new uniforms and lots of ice cream, it takes them a while to realize that he doesn't know how to coach soccer.
Arthur's Grandma Thora, a marbles champion, trains him for the first-ever Elwood City Marbles Tournament, but does not tell him that she will compete against him.
Mavis tries to pursue her goal of playing fairy godmother and granting wishes to those around her, but she finds the process trickier than she thought.
Frustrated by Santa's slowness at Christmastime, Muckle the elf creates a mechanical replacement called the Deliverator and proposes a series of contests to prove that it can do Santa's job better than he can.