Eric has been ordered to bring two Divergent back to headquarters for Jeanine, while executing all the other Divergent they find. Tris attacks Eric, stabbing him in the stomach, as other Dauntless, including Tobias, arrive to help. Eric is taken prisoner. Other Dauntless traitors are killed or run away.

After the unsuccessful attack upon Candor headquarters, Tris discovers that she has been shot with some new kind of simulation serum. Caleb arrives with Marcus, who feels that he should show his solidarity with Candor, since they too have been attacked by the Erudite.

Tobias and Tris speculate that the new simulation serum probably allows Jeanine to control people over a longer distance and for a longer period of time, perhaps even for an unlimited amount of time. Tobias also reprimands Tris for charging into the battle with no weapon, no backup, and no real plan. He tells her that it’s foolhardy and reckless for her to risk her life for no good reason. 

When Tris returns to the cafeteria, she sits with the other loyal Dauntless and Caleb. Cara, the Erudite who warned the loyal Dauntless and saved Tris’s and Uriah’s lives, enters the cafeteria and sits with a small group of other Erudite refugees.