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Credit for awesome summary Attack on Titan Season 4 Wikipedia.
As the Wall Titans walk off into the sunset, the people in Trost District argue about the cost in lives and devastation from Eren's strategy, which resulted in the Rumbling.
Hitch finds a weakened Annie who has been freed from her crystal casing and helps her escape from the Military Police. Annie tells Hitch that she no longer wants to fight and wishes to reunite with her adoptive father in Marley. Although he brutally raised her to be a Warrior, when she left, he confessed regret at not treating her like a daughter.
Back in Shiganshina, Armin angrily chastises Mikasa for worrying about Eren, whom he sees as a lost cause. He calms down saying that Erwin should have been revived instead of him. Armin and Gabi then head out to pursue Connie and Falco. Falco has lost his memory of the recent battle after awaking.
Meanwhile, Floch and the Jaegerists confront the Volunteers with the reality that their only choice is to accept submission to the Eldians or death. Floch then tries to convince Mikasa and a defeated Jean to give up fighting and retire as heroes of Paradis.
Outside the ruined Wall, Pieck and Magath flee into the countryside and come across Hange with the gravely injured Levi.
NOTE: This episode takes place in volume 31 of the manga.