Poppy is told to go upstairs and tidy her room, but thanks to her wildly creative imagination, things quickly spiral out of control. What starts as an ordinary chore becomes a fantastical mess: imaginary creatures like a mammoth (which smashes through the floor), a hungry crocodile, and other whimsical animals invade the room. Poppy must think fast to get rid of these creatures before the chaos becomes too big to manage.