Who is moving next door to Rex? Rex's neighbor, Mrs. Morgan, is going to move, and Pinky and Rex will miss having her nearby. The big question, though, is who will buy Mrs. Morgan's house? And will they have nice kids to play with? When an obnoxious boy named Ollie comes to see the house with his family, the prospects seem gloomy. Little do Pinky and Rex know that the new neighbors will provide a solution to what to do with Pinky's pesky little sister, Amanda.