The once-lush earth is now a desolate wasteland, where zombies swarm and deadly, virus-laden crystals endanger the lives of those who fight for survival. Ruby, a young girl, lives with her father and a small group of survivors in the protected Amina Safe Zone. Life is relatively calm, until Ruby stumbles upon Arvan, a young man with pale skin and white hair who lacks a heartbeat. This discovery sets off a series of events that forces Ruby and her father to launch an inquiry for the truth.