When fifteen-year-old Katrina moves to Perth to live with her mother, a veterinary scientist at the local zoo, she begins acting oddly. Realising she can 'mind-meld' with Garang, the zoo's ferocious female tiger, she finds her senses of smell, hearing, and sight improving, including her night vision. Upset and bewildered by his sister's odd behaviour, her eleven-year-old brother Jamie teams up with the youngest daughter of the zoo manager to try and solve the mystery. But not everyone's intentions are honorable, as one of the zoo's scientists plans to manipulate the genetic quirk that Kat and the tiger share, hoping to use it to recreate extinct species.
