What would you do if you had the power to change the world? Izzy Hartley is a young genius who's single-handedly bringing about the future, one invention at a time, from microwave ovens to flying machines. But what happens when you need to change the world back? When her latest and greatest invention foretells a dismal fate for the planet, it's all up to Izzy and her no-nonsense assistant Joanna to do their best to save the world – and each other.