 Zack and Cody beg their mom for a pet, so she gives them rocks. They hear that the horse man for the Tipton is retiring. Mr. Moseby is planning to sell Tippy the Horse to a "nice" man from Vermont. The twins overhear the man on his cell phone saying that he is using Tippy as a workhorse. The twins hide Tippy in Arwin s shack, but he gets loose in the hotel. Moseby makes the twins find Tippy before he does or their mom is fired. They find Tippy and let him sleep in their room for the night...BIG MISTAKE!