The bunkers were built for the apocalypse. Just not the one they expected.

Life was bad and getting worse in the depths of Salvation. It did not take the people of Level Three long to realize that the only reason they had been spared from the cataclysm was to become a slave class. Now, a single accident has changed everything.

Fear is spreading like a virus. Rumors become facts the moment they’re spoken. Neighbor is turning against neighbor. And time is running out fast.

For most, this signals the end. For Callie and her friends, there is just one hope, but to find it, they’re going to have to fight through the most terror-filled night of their lives. Can they escape the horror that awaits them? Or will these next few hours be their last?