When an unknown disease wipes out most of the world's population, a man with unique blood is isolated for study. Fearing for his wife's safety, he breaks his quarantine - into a When an unknown disease wipes out most of the world's population, a man with unique blood is isolated for study. Fearing for his wife's safety, he breaks his quarantine - into a world overrun by monstrous Infected and a shadowy agency hunting them down.详情