The twins become popular when other kids discover they live at the hotel; Maddie tutors London in math.
Maddie pretends to be a hotel guest when asked out on a date.
The boys search for the treasure of mobster Alphonse "Hot Peppers" DeLeo.
An inspector seizes control of hotel operations from Mr. Moseby.
Jewel thieves are in the Tipton Hotel; Zack and Cody try to clear someone's name.