Do not share any provisions. Avoid any contact. And most importantly: Do not let them into your heart. After the events in NNY, it seems harder than ever to stick to these three rules. Bruised and injured, Cassidy and her friends begin their journey back - always ready to defend themselves against the Noahs who are on their trail. But the enemy has long been walking among them. With each passing day, the Noah within Cassidy grows stronger, and she feels herself slowly but surely becoming the beast. She knows: If she loses this fight, it would not only mean the end of her own life but also that of her friends.