Wizards of Waverly Places: Season 3, Episode 6

3 - 6: Doll House

When Harper learns that her family is moving away, the Russos offer to let Harper live with them. While Alex and Harper clean out the basement to make room for Harper's stuff, Alex shrinks herself down to fit in her old doll house, but Jerry and Theresa give the doll house away to a little girl named Olive with Alex still in it.