Unarmed and overwhelmed by the Titan assault on the castle, the only hope for the Scouts may lie in a promise and a secret.

The Scouts rally and charge in pursuit, but Reiner is not quite himself while the group is trapped in the giant forest until nightfall.

The battle continues as Eren and the Scouts face many hard decisions. Who is the real enemy? What is the war really about? And what will the future hold for mankind?

When everything falls apart, Eren must believe in himself to save his friends. But Eren alone may not be enough to stop the impending doom.

Colt pleads with Zeke to not use his scream and turn Falco into a Titan. All the while, soldiers and Titans clash in battle as Eren struggles to make contact with his brother.