A new president is moving into the White House, and best of all . . . she has kids! That means cool kid treasures for Ava and Dean Squeakerton. Maybe they ll even find a Lego! There s only one problem. . . . Sneaking around means Ava and Dean will each have to be as quiet as a . . . mouse. And the Squeakerton siblings aren t so good at that. But moving day is so busy, nobody would notice two mice searching for toys . . . right?