Teen female ninja action hero, Hattori Hachi (aka Hattie Jackson from Camden, London) takes on the evil ninja Kataki, fighting Raven and his army of followers in an abandoned castle in Kielder, Northumberland. Raven hang-glides through the air, swooping down to steal pray to eat - that some say can even be human. Why is Raven trying to blow up Kielder reservoir, threatening the lives of thousands of people? Can Hattori Hachi stop him with her amazing fighting skills, quick wit and smart thinking..?