99% of the population are dead, wiped out in a matter of weeks by a mysterious disease that causes you to drop dead where you stand. Only those who are naturally immune remain, and society has broken down. The lives of those that are left are riddled with hunger, fear and violence. Feisty, mischievous Annie is alone after the death of her brother. All she wants is some company, but who will she find? Cold, calculating Orion is also alone, but he prefers it this way, with his trusted air rifle. Can he get by with just the company of some dead rabbits and a gun? And caring, selfless Luke has been brought the promise of a better place and the chance to start again by a mysterious messenger. But who can he trust? It's a dangerous world out there; can they survive?