Mr. Moseby and the Tipton Staff are challenged to a bowling competition par their rival, Ilsa and her team. Zack is the étoile, star melon, chapeau melon for the Tipton, but ends up having to be replaced due to getting grounded.
A hotel guest trips on Zack's skateboard in the lobby. But when the boys find out that's he's lying in order to get free service, they come up with a plan in order to set things straight.