Follow Jason Andrews, Number 12, the Occupant Information Recorder. His job is simple: He keeps tabs on everyone else and makes sure they're doing their jobs. With a request, he is also put in charge of controlling the emotions of everyone. Stuck in a Fallout Shelter with no one but his brother and 68 other people, he must learn to follow orders from the demanding HOPE program. In this test of morals, trust, and survival, does Jason have what it takes to live on? Or will he fail, and simply become another number to fall?