Sue Ellen Moves In is the first part of 21st episode of Arthur season 1. It day viewed on February 10, 1997 with The Perfect Brother.
Summary[]
Rumors are circulating about the new family that has moved in and Buster thinks that they may be art thieves, spies or aliens, even after he meets Sue Ellen. When Buster's mom invites Sue Ellen over for dinner, he finds out that Sue Ellen is not an alien, but just a kid who has lived in various places around the world.