When Zack and Cody knock an ancient mummy over the balcony, Zack dresses Cody up to replace it for the exhibit. Esteban is scared of the curse of the mummy, so he and Maddie try to swap the mummy for Maddie's old doll.

A competing minimart issues a competition to see who can bag items faster, Zack and Cody accept the challenge. Meanwhile, Mr. Moseby's niece Nia is goofing off with London.

A monster-like robot is accidentally released into the hotel, due to the twins. A Halloween party is thrown by London. A typical prank.

Maddie is back and is not getting along with Nia, while Estaban is not getting along with Patrick, and the rest of staff aren't getting along either. So, Mr. Moseby hires a professional to help the team get along. Meanwhile, when Zack causes some customers to leave, he and Cody schedule a bug convention at the Tipton to make it up to Mr. Moseby. However, due to his fear of bugs, he accidentally releases the bugs into the Tipton.