Three survivors travel the ruins of a collapsed society, sifting through the rusted relics of the Ancients' civilization as they search for a better future, hoping to escape the horrors of the past. But among those treasures lurks danger. And what they discover might be worse than what they left behind.

John Eric Carver and Shrek are a retired Navy SEAL war dog team, now living in the mountains outside of San Diego. Both man and dog thought their life was now settled, finding peace on the 40-acre ranch they had moved to. But life, and a mutated virus, changed all that.

Isaac Race thought he'd found a new family and home. A new Life. He had, but it's all about to be snatched away. When an ambitious enemy launches a sneak attack on the USA, his peaceful life is shattered and Isaac, by his very nature a loner, must band together with a ragtag group of survivors to make their way to a sanctuary, three states away in the depths of a vicious east coast winter.

Tough-as-nails Dakota Sloane has spent her life running from the past. A man haunted by secrets, Logan Garcia has only one goal: to drink himself into oblivion. When a bomb detonates over Miami, utter anarchy erupts. Dakota knows of a safe house deep in the Everglades, but she needs Logan's help to survive the chaos. But the radiation isn't the only threat. At every turn, deadly foes are determined to stop them. As a diabolical conspiracy emerges, Logan and Dakota must prepare for the fight of their lives against an enemy more powerful than they could ever imagine.

It was just a random mutation - one of a billion that happen in viruses every day. But this one was different. It exploded out of Somalia and spread across the oceans before anybody thought to look up from their cell phones to see what was going on. The infected breathed the virus into the air around them, spreading it through the cities faster than anyone thought possible. Hospitals were overwhelmed. Police lines crumbled. Quarantine sites disintegrated. Cities started to collapse.