In the aftermath of a horrific infection that killed off a huge percentage of the human population - and brought them back to life again - Chase and his team are sent on a dangerous mission beyond the safety of the camp to find the only known immune human. All chase knows is how to follow orders, but when new information about the so-called cure comes to light, he has to think about the safety of his companions over his training, and find somewhere else to protect his slowly growing family of survivors