Though glad the war is over, both the Eldian Warriors and Marley brass realize that neither have a future unless they finish the job of retaking the Founding Titan.

The forces of Paradis begin their assault, but the Warriors stand their ground. As Marley troops close in around them, Eren struggles to break the War Hammer's defenses.

A look into Zeke's past shows his struggle to become a Warrior. His plans to end the suffering of all Eldians stems from a chance friendship made in his youth.

Caught off guard by Marley's surprise attack, Eren fends off their Titans alone. As the battle rages on above, the Scouts consider Eren's motives from the underground dungeons.

As the rumbling advances, the remaining members of the Scout Regiment race against the clock with their Marleyan and Azumabito allies to catch up to Eren and stop the rumbling before the rest of the world is crushed under the Wall Titans' feet.