Insurgent picks up right where Divergent left off. Tris and Tobias and the gang have survived the Erudite takeover and are on the run with a few Dauntless defectors and Abnegation survivors. They seek help from the other factions, the truth-telling Candor and the peace-loving Amity, but soon realize they are on their own. They team up with the Factionless, all those who have left their factions and been marginalized by society. Together they must stop the Erudite from taking over completely. Along the way new alliances are formed, friends are betrayed, enemies are revealed and friendships are tested. Tris and Tobias and the rest must discover the secrets Erudite are willing to kill for and save what is left of their people.
There is a lot going on in this book and yet it seems like not a lot is accomplished. I do still enjoy this world Roth has created and am interested to see how the story plays out. This book suffers a bit from the sophomore slump; it is definitely the middle of the story setting up the big finale. In this book Tris is damaged by the events of the last book and what she had to do to survive. She is haunted by the shooting of her friend Will and can barely pick up a gun. This tests her relationship with Tobias and her friends. The Erudite are just as evil as always and their role is one of the more unsatisfying. It is never really adequately explained why they want to hide the information Abnegation was going to reveal or why they are so determined to exterminate the divergent. The big twist at the end is interesting and should make for an exciting final book.