As Eren ruthlessly tramples every inch of the outside world, the Alliance arrives at Fort Salta to intercept the Founder and stop the Rumbling. Although Eren feels immense remorse over his horrific invasion, he believes to harbor noble intentions: he believes the path ahead is the only way to save his friends and, to a greater extent, his people. The opposing battalions spiral toward an inevitable final clash that may claim the lives of billions. Though they face an army of monsters beyond anything they could have previously imagined, Mikasa, Armin, and their allies stand brave in the face of certain doom.