Rylan has two sisters that are always taking his toys and blanket. They make him angry enough to hit his oldest sister. Mom sends him to bed as punishment. But he is awakened by a crunching sound from under his bed. There in a bag of chips is a mouse that Rylan names Henry. Henry and Mom find each other days later in the garage. Rylan is not sure who will win the broom battle-Mom or Henry? Henry gets locked out of the house. He wants to find his friend Rylan who has more chips. Henry does not know that Rylan and his family have gone to pick up Dad at the airport from deployment. What will happen to Henry?