Poppy has the most extraordinary imagination. When she is sent upstairs to clean her room, she just can't help imagining, and suddenly . . . her imagination literally comes alive. Soon her room is jam-packed with all kinds of weird and wonderful creatures. There are a few problems, though: the mammoth puts his foot through the floor, and the hungry crocodile thinks Poppy would make a tasty snack. Poppy needs to get rid of all these creatures fast. But how?