The tables have turned in this hilarious follow-up to There's a Bear on My Chair. But this time it's Bear who has an unwelcome guest, and this mouse just won't leave! He's making a real commotion in Bear's house-eating all the food, listening to loud music, and even spilling bathwater all over the floor! But when there's an unexpected knock at the door, will Bear decide that visitors aren't so bad after all?