Polly has had enough. She lives with her huge family in a smelly old shoe. It is cramped and leaky, and Polly has to share a bed with as many as thirteen of her brothers and sisters. Her mum is always nagging her to put the kettle on, and all they have to eat is broth (without any bread). So Polly, together with her brother Pockets, decide to run away. They are going to look for a better place for the family to live. But when they find the perfect home - a pair of gigantic seven-league boots as big as a block of flats - there is one very large problem...the GIANT!