Following Eren Yeager's devastating actions, a coalition forms among his old friends and foes to combat his destructive rampage. Once adversaries, Armin, Mikasa, and the Scout Regiment band together with Reiner Braun and the Marleyan military survivors. Together, they embark on a mission to halt Eren's onslaught and perhaps redeem their former companion. Amid Eren's relentless advance, he grapples with inner conflict, torn between regret for his brutal campaign and a belief in his righteous cause to safeguard his comrades and his nation. As the opposing forces hurtle towards an unavoidable showdown with the potential to claim countless lives, facing unimaginable foes, Mikasa, Armin, and their comrades steel themselves for a daunting battle against overwhelming odds.