As the leader of the Erudite faction, Janine (Kate Winslet) launched a ruthless hunt for the divergent Tris (Shailene Woodley) and the Fourth (Theo James), and Tris's parents both died in the hunt. The two fled all the way, and constantly tried to gain support and alliances from colleagues in other factions, wanting to expand their strength and overthrow Janine's brutal rule. What the two did not expect was that the once most useless factionless camp has now become the backbone of the revolution, and the leader of the resistance army turned out to be the fourth's long-lost mother Evelyn (Naomi Watts). However, the occurrence of various accidents made the fourth begin to suspect that his mother actually had other plans. At the same time, Tris also discovered the secrets hidden by her parents during their lifetime. Using this secret as bait, Tris came to the enemy base alone.