The end of the world isn't coming — it's already here.

Rachel spent years advising leaders on how to survive the collapse of civilization. Now, as society crumbles, she's running for her life with her family in tow — and wondering if her past strategies helped spark the very apocalypse she was trying to prevent.

Her sister, Brenda, isn't buying the innocent act. She knows Rachel's brilliance comes with a dark side — and she's determined to track her down. But as Brenda follows the trail into chaos, she starts to wonder: in a world this broken, who deserves to survive?

One sister hides the truth. The other hunts it. And the end is just beginning.