Beatrice "Tris" Prior was born into Abnegation, but never felt truly selfless. During her aptitude test, she gets inconclusive results for Abnegation, Dauntless, and Erudite. The tester, Tori, warns her: “You’re Divergent.” Divergents don’t fit one faction – and the government hunts and kills them because they can’t be controlled.
After overthrowing the Erudite and ending the faction system, Evelyn Johnson – Tobias’s mother – takes control of Chicago and imposes her own factionless dictatorship. She wants to erase the past by putting everyone on trial, executing former leaders, and forbidding anyone from leaving the city.