Mia Marten has just moved to South Australia's remote Kangaroo Island, after her mum's untimely passing. When she witnesses the slaughter of feral cats in the quiet island community of Penneshaw, her life takes a thrilling and terrifying turn. Committing herself to stopping animal cruelty, she finds saving feral cats is not easy. There is only one man right for the task, the legendary Billabong Jack, but he comes with a dark past. Mia's race to save the feral cats quickly spirals into a race to uncover the truth about Jack and save her own life.