Apart from the company of her flying pet ferret Fernando and her auntie Carla, 13-year-old Nessa Santiago is alone. Her mother died in a circus accident and she has never known her father. But when the day finally comes for Nessa to meet him, everything goes wrong. Her auntie unexpectedly leaves in a helicopter and a menacing Cryptid Hunter, who captures unusual creatures like Fernando, shows up instead. In order to keep Fernando safe, Nessa must run. With help from Kep, a boy from her school, Nessa embarks on a wild journey through rural Australia to find her father. Nessa, Fernando and Kep are pursued by the anti-cryptid organisation HARNESS and a mysterious giant bird in the sky. Along the way, they meet weird and wonderful creatures, but with each new encounter, more questions arise. What are the visions Nessa gets every time she closes her eyes? And what are they trying to tell her about her parents?