It's been one year. One year since the zombie apocalypse broke out, caused by a science experiment. The place blew up after they created a virus- Virus Z. As of right now, Annabeth, Piper, Leo, Hazel, Frank, Jason, Reyna, Thalia and Nico are some of the only estimated 250 people that aren't infected. They don't understand how cruel the world is until a young boy, not even ten years old, comes screaming for help at their doorstep, driven to the brink of insanity by the cruelty and harshness of the world.