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

When their group finally flees, Ymir wonders whether she should lie or stay true to herself, even if it means ruining the lives and future of those she cares about.

The Scouts gather for a feisty feast before leaving to retake Wall Maria to uncover what's hidden in the basement once and for all.

Though their Thunder Spears prove effective, the Scouts' celebration is short-lived as disaster descends upon Shiganshina.