It's the year 2132, nearly 100 years after the nuclear downfall of the world. What is left of humanity is underground in shelters, which life has been sustained in for those hundred years. The people's purpose in the shelter is to find a way for humanity to once again live on the surface. Lilith Grey, a 15 year old, is finally eligible for the selection to see what her contribution to saving the world will be. But she soon learns that not everything is as it seems.