Mikasa Ackerman, Armin Arlert and Eren Yeager's former Survey Corps comrades are imprisoned, shaken by the person Eren has become. Still convinced that his hidden intentions are good, they join the fighting in an effort to save their friend.
Eren has turned on former allies and enemies alike. Guided by Zeke, the Beast Titan, he pursues extreme measures to end the ancient conflict between Marley and Eldia, setting a disastrous plan in motion while keeping his true aims concealed. His struggle to determine his own destiny also draws him deep into his family's past.
Meanwhile, Marley and Eldia deploy soldiers and Titans in a brutal effort to wipe each other out. Reiner Braun draws on his powers to resist Eren's military force, while fellow Eldians Falco Grice and Gabi Braun struggle to survive the chaos engulfing them.
