The answers hidden in the Yeager family basement have given the Survey Corps the truth about the Titans' dark history. With that hard-won knowledge, they venture into the world beyond the walls, taking Paradis' struggle for freedom into a confrontation with those on the other side.
For Marleyan cadets Gabi Braun and Falco Grice, years of training have been devoted to inheriting one of the seven Titans their nation controls. Their intended role is to help Marley eradicate the Eldians on Paradis. The arrival of Eren Yeager and the remaining Survey Corps members disrupts the cadets' lives, bringing together two very different worlds whose opposing sides are pursuing their own aims.