Centuries ago, mankind was slaughtered to near extinction by monstrous humanoid creatures called Titans, forcing humans to hide in fear behind enormous concentric walls. What makes these giants truly terrifying is that their taste for human flesh is not born out of hunger but what appears to be out of pleasure. To ensure their survival, the remnants of humanity began living within defensive barriers, resulting in one hundred years without a single titan encounter. However, that fragile calm is soon shattered when a colossal Titan manages to breach the supposedly impregnable outer wall, reigniting the fight for survival against the man-eating abominations. After witnessing a horrific personal loss at the hands of the invading creatures, Eren Yeager dedicates his life to their eradication by enlisting into the Survey Corps, an elite military unit that combats the merciless humanoids outside the protection of the walls. Eren, his adopted sister Mikasa Ackerman, and his childhood friend Armin Arlert join the brutal war against the Titans and race to discover a way of defeating them before the last walls are breached.

Turning against his former allies and enemies alike, Eren Yeager sets a disastrous plan in motion. Under the guidance of the Beast Titan, Zeke, Eren takes extreme measures to end the ancient conflict between Marley and Eldia—but his true intentions remain a mystery. Delving deep into his family's past, Eren fights to control his own destiny. Meanwhile, the long-feuding nations of Marley and Eldia utilize both soldiers and Titans in a brutal race to eliminate the other. Reiner Braun uses his own powers in a desperate bid to hold off Eren's own militaristic force, and his fellow Eldians—children Falco Grice and Gabi Braun—struggle to survive in the unfolding chaos. Elsewhere, Eren's childhood friends Mikasa Ackerman and Armin Arlert remain imprisoned alongside Eren's former Survey Corps companions, all disturbed by Eren's monstrous transformation. Under the blind belief that Eren still secretly harbors good intentions, Mikasa and the others enter the fray in an attempt to save their friend's very soul.

Gabi Braun and Falco Grice have been training their entire lives to inherit one of the seven Titans under Marley's control and aid their nation in eradicating the Eldians on Paradis. However, just as all seems well for the two cadets, their peace is suddenly shaken by the arrival of Eren Yeager and the remaining members of the Survey Corps. Having finally reached the Yeager family basement and learned about the dark history surrounding the Titans, the Survey Corps has at long last found the answer they so desperately fought to uncover. With the truth now in their hands, the group set out for the world beyond the walls. In Shingeki no Kyojin: The Final Season, two utterly different worlds collide as each party pursues its own agenda in the long-awaited conclusion to Paradis' fight for freedom.

Seeking to restore humanity's diminishing hope, the Survey Corps embark on a mission to retake Wall Maria, where the battle against the merciless Titans takes the stage once again. Returning to the tattered Shiganshina District that was once his home, Eren Yeager and the Corps find the town oddly unoccupied by Titans. Even after the outer gate is plugged, they strangely encounter no opposition. The mission progresses smoothly until Armin Arlert, highly suspicious of the enemy's absence, discovers distressing signs of a potential scheme against them. Shingeki no Kyojin Season 3 Part 2 follows Eren as he vows to take back everything that was once his. Alongside him, the Survey Corps strive—through countless sacrifices—to carve a path towards victory and uncover the secrets locked away in the Yeager family's basement.