With special guest star Bebe Neuwirth. Hacker steals the powerful Eye of Rom from Binky the Cat's pyramid, placing the Ancient Egypt cybersite in jeopardy. The kids and Digit set out to retrieve the Eye from Hacker, but the journey is packed with a maze of exciting, action-filled gambits that force them to first do and undo a series of complicated steps. The Big Idea: Find the inverse of an action and you can undo it, putting things back the way they were. Math Topic: Inverse Operations; NCTM Link: Number & Operations.