An electronic pulse has changed everything - humans to flesh eating zombies, or super-powered individuals. Alex, along with an ex-army officer and a young child have to survive in this very different world.
On an uninhabited island in the Scillies, Alfie and his father find an injured girl - alone, and with no memory of who she is. or how she came to be there. She can speak only one word: Lucy. Is she a mermaid, a ghost? Or could she even be a German spy?