In the Chicago dystopian of Beatrice Prior, society is divided into five factions, each dedicated to cultivating a particular virtue: Truth (the honest), Abnegation (the selfless), Daring (the brave), Agreeableness (peaceful) and Scholarship (smart). In an annual ceremony, all the boys of sixteen must decide which faction will devote the rest of their lives. Beatrice has to choose between staying with her family... and be who he really is, can not have both. So take a decision that surprised everyone, including herself. During the competitive process after initiation, Beatrice decides to be renamed Tris and tries to find out who your real friends are, and where it fits into your life fall for a guy who sometimes fascinating, sometimes the exasperated. But Tris also has a secret, a secret that has not told anyone not to put his life in danger. When he discovers a conflict that threatens to derail the seemingly perfect society in which he lives, also learns that her secret might be the key to saving those he loves or... to finish dead.