The year is 2236. Global warming, war and disease have left Earth a barely habitable shell of its former self and the last surviving humans live indoors in complexes designed to protect them from the outside world. Zoey and Blythe have spent their entire lives indoors; they will live and die inside these walls. The government has done this all to keep them safe and ensure the survival of the human race. Or have they? When Zoey discovers that the situation is far worse than they have been led to believe, and the proposed solution will threaten the lives of every woman left alive, she must make a devastating choice: Does she continue living in feigned ignorance and submission? Or does she risk everything to try and save the people she loves? Together, she and Blythe must confront the brutal reality of their world and determine where the line is between surviving and living.