Utgard Castle comes crumbling down as Ymir desperately battles the Titans. Now, Christa must fulfill the promise they made long ago during winter training.

While one front in the battle is rained on by flames, the other is battered by boulders. With no way out, the Scouts are forced to fight or die trying.

Though it's met with hope and despair, the truth is made public. The Scouts then venture beyond the walls to see if it's everything they dreamed of.