Mercy: Assault on Stohess, Part 2.A few days before Eren is escorted to the capital, Erwin and Armin told him about a plan to capture Annie, the person shockingly believed to be the Female Titan. Back in the present, Eren, Mikasa and Armin manage to escape a tunnel collapse while being hunted by Annie as the Female Titan. Eren tries to transform but is unable to, and Mikasa suspects that his feelings for Annie are preventing him to do so. When Eren is trapped in another tunnel collapse, Mikasa and Armin distract Annie away from Eren. Meanwhile, Commander Nile Dawk of the Military Police Regiment demands an explanation from Erwin on what is happening as his men hold him at gunpoint. Mikasa and the rest of the Scout Regiment distract and try to capture Annie, while Armin and Jean attempt to free Eren from the rubble. Armin tells Eren that he has to fight Annie as anyone who refuses to sacrifice can never change anything. As Eren thinks about what Armin said, he remembers his hatred for the Smiling Titan who killed his mother. Eren finally transforms into a Titan and charges at Annie in a rage, smashing into a cathedral.