Insurgent

Caleb approaches Tris before one of the results sessions. She cannot understand his betrayal of their parents, or her. Caleb arrogantly assumes that his decision is right because he sees the big picture, which eludes her.

Tris discovers that she has more mirror neurons in her brain than a typical person; these neurons account for her flexible personality and multiple aptitudes. Tris cannot bring herself to care. She just wants everything to be over.

Tris wakes up inside the next simulation, in which Tobias is helping her to escape. She soon realizes that she is inside a simulation and ends it. Jeanine is so furious that she is driven to attack Tris and holds a gun to her head. Tris is a problem that Jeanine cannot solve, and it drives her mad. Tris attacks Jeanine, scratching her face and punching her in the nose. Tris triumphs over Jeanine.

Peter tells Tris that her execution has been scheduled for the next day. Jeanine will continue the experiments with Tobias. Tris makes peace with herself.

Peter is Tris’s executioner. Tris believes that she is going to die, but when the heart monitor stops bleeping, Tris is still aware and conscious. 

Peter repays his debt to Tris, by rigging her execution and helping her and Tobias escape. They return to Tobias’s old house in the Abnegation sector. Uriah and Christina are there too, along with many of the Dauntless and factionless who are preparing to fight.

Tobias and Tris declare their love for one another; Tobias promises to be Tris’s family, now that she has lost everyone else.

When Tris wakes up, the house is full of Dauntless and factionless, including Evelyn, who has taken over the house, kicking Marcus out. Tobias looks forward to defeating Erudite and the end of factions. Tris doesn’t want to argue with him, but she does not think that the Candor and Dauntless will agree to the end of the faction system.

Tris sees how at ease Tobias is among this strange mix of company, and she realizes that Tobias is special in his ability to get along with and accept a wide range of people.

Tris wanders around her old neighborhood, ending up in Abnegation headquarters. Marcus follows her into the building. He tries to convince Tris to help him regain the information Jeanine stole; he tells Tris that her mother died trying to get that file back from Jeanine, not just trying to save Tris. He also confirms that the file contains information relevant to the Divergent and to what is outside the fence. He refuses to tell her exactly what the information is, but he does reveal that they were all placed inside the fence for a reason.

Tris realizes, as Marcus does, that if the factionless/Dauntless plan succeeds, then all Erudite information will be destroyed, including this important secret. However, she refuses to help him because she thinks that he is trying to manipulate her by telling her about her mother, and she knows that helping him would involve betraying Tobias.

As she continues to walk through the neighborhood, Tris debates with herself about Marcus. He might be both good and bad—mostly bad—but that does not mean he is lying.

She finds everyone gathered together as Evelyn and Tori explain the battle plan. As she listens, Christina and Tris realize that they are just planning to do to the Erudite what Erudite did to the Abnegation. It doesn’t feel right. 

Tris leaves the group to think. She recognizes that she must help Marcus preserve the secret information. She lies to Tobias when he tells her that she is going to be in his battle group, attacking the control rooms, saying that she cannot hold a gun and doesn’t want to participate in the battle. He is completely sympathetic and tells her that she should stay behind.

Tris and Christina disguise themselves as Amity; they are meeting up with Marcus to enact the first step of their plan. Christina too wants everyone to know the truth, so she has agreed to help Tris and Marcus. They travel to Amity, where Marcus and Tris ask Johanna for her assistance.

Johanna agrees to speak to the group on their behalf the next day. While the Amity are discussing the problem, Tris runs into Cara, and Cara also agrees to help. The Amity refuse to get involved, but Johanna and several others leave Amity to join Marcus.