Danny Wright is considered to be a hero by many in the rebel held area of Idaho and the Northwest, but he has little faith in what passes for a government there, or in the secretive and repressive Brotherhood--and when nuclear weapons are detonated in Washington, D.C. and New York, the Civil War suddenly turns into World War III.

One choice can transform you -- or it can destroy you. But every choice has consequences, and as unrest surges in the factions all around her, Tris Prior must continue trying to save those she loves -- and herself -- while grappling with haunting questions of grief and forgiveness, identity and loyalty, politics and love. Tris's initiation day should have been marked by celebration and victory with her chosen faction; instead, the day ended with unspeakable...