"There is a chasm between us, a gaping schism that only seems to widen as hard as we try to close the distance. Someday, our combined efforts to reach each other again will lead us both into the abyss." After an overthrow of the unwanted factionless government, the war in Chicago is over. To maintain stability, the faction leaders decide to return to the faction system. Because of this, the sixteen-year-olds that chose that year are sent back to their former factions for nine months. Tris falls into a state of depression after the war and her impromptu breakup that occurred at the end of it, and returning back to Abnegation--to the same house as her traitor brother--doesn't help. Tobias remains in Dauntless, but while he isn't exactly despondent, he does feel out of place. He doesn't fit in and cannot go on with normal life after everything that happened. Then, Choosing Day arrives. And history definitely does not repeat itself when Tris goes through the initiation process with her old friends and enemies, her ex-boyfriend, and the new sixteen-year-olds, while citizens of Chicago are mysteriously dying. WARNING: This story contains discussion of suicide and self-harm, swearing, and suggestive themes.

Tris wakes up in a destroyed, abandoned city with only one memory. And that memory is of a man named Tobias. Desperate for answers, she sets out to find him, though she finds that the crumbling world around her may prove that task to be difficult. Alliances are formed. Choices are made. War breaks out, and Chicago is heavily involved. Tobias must balance leading a city, commanding an army, and getting his wife back. Tris faces many obstacles and hazards along the way as well, but she pushes through, determined to find her way back to him.

"I was wrong. Some people can be mended. Others of us are damaged beyond repair." Three years after the tragic death of Tris, Tobias is still grieving. He puts on a fake front for everyone around him, pretending that he is fine, when he is actually burying his pain in drinking and struggling to get through each day. But when secrets about the Bureau of Genetic Welfare start to emerge, people will need Tobias's help to uncover the truth and stop the corrupt government once and for all.

Beatrice Prior has it all: money, beauty, friends, fame. Her parents are powerful, influential politicians, but unfortunately this makes her and her family targets. Out of nervousness for his daughter, Andrew Prior begins looking for someone to protect her. That is how the secretive Four enters the picture. Despite Beatrice's reluctance, he is hired as her bodyguard and follows her everywhere, much to her annoyance. Their lifestyles make them polar opposites, and they don't get along initially. However, they soon find themselves enjoying being around each other. But Four is still hiding something. Or really, he is hiding everything. Will he be able to be her protection, or will he fail?