Let's say that, there was no attack on Abnegation. Everyone (only the people who made the Dauntless cut) just started a life in Dauntless. Ten years later, Tobias (Four) and Tris where married and had a kid. Now, 26 years in the future, their daughter, Katelyn Eaton, is 16. She faces different problems as she enters dauntless with her best friend, Carenna, daughter of Will and Christina and her other dauntless born friends, Andreas Pedrad son of Uriah, Michael Hayes daughter of Peter, and Lina Pedrad (Paulina) daughter of Zeke. She also meets unexpected friends and foes that remind her parents of their old friends during Dauntless training. People like Ben a transfer from Candor, Gabe a transfer from Erudite, and Maddie a transfer from Abnegation. Narrated in mostly Carenna's and Katelyn's point of view they go on many adventures. If you have not read Divergent by Veronica Roth, I would read it or you might not get some of the jokes. Most characters belong to Veronica Roth.