Blythe Hallowell is 16 when she is abducted and locked away in a missile silo a few miles from her home and family. Wanting nothing more than to escape, Blythe will spend the next 17 years below looking for a way above and imagining what it will be like to go home again. When she finally does get above, the world she left is not the one in which she reemerges.

Abbe is a restless young mother living on the outskirts of Honolulu with her husband, Greg, the pastor at a small church. Their lives are suddenly riven by tragedy when their three-year-old daughter, Cleo, is struck and killed by car. As Greg turns to God and community for comfort, Abbe turns inward and reflects upon her own troubled past.