Poppy has the most extraordinary imagination. When she is sent upstairs to tidy 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's a problem, 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?