A boy named Bird lives in our not-too-distant future (alternatively, could be present day on an adjacent timeline) where America has come out of a devastating crisis, only surviving by the skin of her teeth. The world left behind is on-edge and ready to ensure dominance again by instituting harsh and racist policies in order to keep "True Americans" safe. 
Bird doesn't care about all that--he just wants to know where his mother disappeared to and if she's really the dangerous radical activist that everyone says she is. 
Our Missing Hearts is a soul-stirring novel about what wakes us up and how hard many of us will cling to our sleep.