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 special military tribunal will decide Eren's fate. The Military Police calls for his execution while the Recon Corps argues that he is a powerful resource for humankind, and Mikasa is put on the spot when asked about the events of the Trost mission.

With the Female Titan still chasing after Levi's squad, Eren considers turning himself into his Titan form, but Levi tells him to choose to be either a monster or a member of the Recon Corps. As Eren remembers what he has learned from the squad, he realizes that the danger and sacrifice they all share is not what binds them — it is trust. Now it is up to Eren to make the decision of who he will trust.

Two years after escaping the torment of his mother, Jean attempts to avoid her when returning to Trost for a training exercise. In a strange turn of events, he ends up in a cooking contest against Sasha.

Levi's group joins the Scout Regiment, but they bring with them a hidden agenda. The upcoming expedition beyond the walls seems like the perfect opportunity to carry out their plan.