Hugo is a boy who loves eating and sleeping and hates exercise. Because he is lazy, his room is always messy, and he does not even care about his hygiene. He takes a bath only when he is forced to, and he never brushes his teeth. One day, two tooth worms named George and Arthur find a way to his teeth and choose one to live in. Soon, a few homeless tooth worms show up, asking George and Arthur to let them live there. Arthur and George happily agree...