The twins become popular when other kids discover they live at the hotel; Maddie tutors London in math.
An inspector seizes control of hotel operations from Mr. Moseby.
Maddie pretends to be a hotel guest when asked out on a date.
Cody doubts himself when Zack is chosen for a dance contest instead of him.
London moves into Maddie's house; Zack and Cody wonder if they were mixed up as babies.