In a future Chicago setting, people are divided into five distinct factions based on their personalities. Beatrice discovers that she is Divergent, meaning she does not fit into any one faction, and soon uncovers a sinister plot brewing in her seemingly perfect society.
Beatrice Prior must go on saving the ones she loves and confront her inner demons to fight against a powerful alliance that is threatening her society.
Tris and Four make the hard decision to leave their home behind in an attempt to find a way to save Chicago from turmoil. However, they end up being taken to a city of hidden secrets where they end up learning the backstory of how their world became what it is.