A single choice defines you. The divided society in factions in which Tris Prior believed before was torn to pieces, fractured by violence and power struggles, and marked by betrayal. So, when you have the opportunity to explore the world beyond the limits you’ve always known, Tris is more than willing. Perhaps, on the other side of the fence, Tobias and she discover a new life together simpler, free of lies, confused loyalties and painful memories. However, the new reality of Tris is even more disturbing than the one that has left behind. What they thought they had discovered made no sense. Explosive truths arise that make change of opinion to their loved ones.