In the ongoing saga of the Zombie Rules series, Zach, his family and friends are lured from their home in Tennessee and relocate to a post-apocalyptic bunker known as Mount Weather, nestled in rural Virginia. They have been promised a better life by none other than the President himself.

Zach's apparent immunity to the zombie virus may hold the key to creating a vaccine and securing a future for the human race. Life at Mount Weather is indeed a significant improvement from their former life, but it is not without its dark side, and Zach finds himself having to make a difficult choice.