When global climate change and economic crises lead to social chaos in the early 2020s, California becomes full of dangers, from pervasive water shortage to masses of vagabonds who will do anything to live to see another day. Fifteen-year-old Lauren Olamina lives inside a gated community with her preacher father, family, and neighbors, sheltered from the surrounding anarchy. In a society where any vulnerability is a risk, she suffers from hyperempathy, a debilitating sensitivity to others' emotions.