Tigers are now extinct in the wild but in the Yorkshire Dales there is the world's largest Tiger Park. Tiger bones are still prized in Chinese medicine and Mr Yung, the head of a Chinese gang, is after the Malham Tigers. He is particularly anxious to procure a young tigress called Lila, who is a rare 'Spirit Tiger'. When the poaching goes horribly wrong, there is a massacre of tigers and men, but, thanks to Lila, some of the tigers escape. With her supernatural powers, which include shape-changing into a young girl, Lila pursues everyone involved in the massacre.