Imagine the Erudite plans never going though. Imagine the factions never going into a rebellion. Imagine that no one went outside the fence. Imagine how many people that would still be alive in the factions. Imagine Tris Prior and Tobias Eaton were able to live out a normal life as Dauntless members. Imagine nothing went wrong until a generation later. Sixteen-year-old Ella Eaton, Tobias Eaton and Tris Prior's daughter, has to face the one choice that can change her life completely. What faction to choose? Should she stay Dauntless with her family and friends or go a completely different route? Should she trust the tests or her instinct?

In a town where one misstep can turn into a national scandal, the students at D.C.’s elite Georgetown Academy know there’s only one rule: whatever you do, don’t get caught.