Claire knows only a world where most of humanity lives inside sparsely populated cities protected from the Outside by guarded walls. She is a new Driver whose job is to transport items between these cities. Under the watchful eye of her Protector, Shaun, Claire makes her first run from San Jose to Angel City to bring back medicine needed to save hundreds of lives. However, the trip takes them through the dangerous land of the Outsiders. Using their skills, Claire and Shaun must escape from their armed pursuers in a chase across miles of barren wasteland with no hope of help.