After one hundred years of peace, humanity is suddenly reminded of the terror of being at the Titans' mercy.

Cadets respond to Eren's terrifying transformation with doubt and fear as he struggles to understand it himself. If Armin can’t talk the commander into using Eren’s newfound powers for the good of humankind, all hope of stopping the Titans might be lost.

A recap of events since the Fall of Shiganshina and the Battle of Trost.

Eren, spurred on by his promise to kill every single Titan, unleashes the full power of his Titan form in the fight with the Female Titan. As their bloody battle draws to a close, it seems humanity may finally have a chance at survival. However, with many mysteries still left unsolved, what will await Eren, Mikasa, and Armin?