After one hundred years of peace, humanity is suddenly reminded of the terror of being at the Titans' mercy.

After the retreat bell sounds, many cadets find themselves without enough fuel to scale the wall back to safety. Mikasa begins to lose hope once she hears of the deaths in Armin's squad, but the appearance of a new type of Titan stokes her will to fight.

Armin comes up with a risky plan that pits Titan against Titan as the abandoned cadets attempt to take back their headquarters. Getting into the building might be possible, but getting out alive and refueled will mean facing more of the giants.

A miraculous return is met with anger and fear. Cannons are fixed on Eren as he struggles to remember what happened to him inside the belly of a Titan and how he ended up as humankind's enemy. One question is all that matters: is Eren human or Titan?

Cadets respond to Eren's terrifying transformation with doubt and fear as he struggles to understand it himself. If Armin can’t talk the commander into using Eren’s newfound powers for the good of humankind, all hope of stopping the Titans might be lost.

Plans are made to use Eren's Titan powers to seal the hole in the wall in an attempt reclaim Trost. But with the government's bloodstained history and vocal dissenters in the military ranks, the biggest threat to humankind may not be the Titans.

The plan to reclaim Trost falls apart when Eren's newfound powers turn him into a mindless giant. As Titans continue to swarm the city, it's up to Armin and Mikasa to make sure the cadets massacred during the mission haven't died in vain.

Jean takes desperate measures to replace his broken Maneuver Gear. Meanwhile, Eren is able to seal the hole in the wall thanks to the help of his fellow cadets, but the cost of humanity's first victory against the Titans will be enormous.

A recap of events since the Fall of Shiganshina and the Battle of Trost.

The Recon Corps moves Eren to an old abandoned castle where he will continue his training. Hange visits and reveals that she's been putting two captured Titans through a series of tests and trials — experiments that she wants Eren's help with.

Everyone is a suspect in the investigation to find out who killed the two test-subject Titans. Meanwhile, the cadets pick which military branch they'll be joining, but after the harrowing events in the Trost attack, many are uncertain which branch to choose.

As the Recon Corps begins its push toward Shiganshina, they encounter an intelligent Female Titan unlike any they've seen before. When Armin hypothesizes that it's really a human that's been turned into a Titan, he, Jean, and Reiner attempt to stop it.

As the Female Titan continues to tear its way through the Recon Corps, Levi makes a bold decision to split the ranks and send Eren and the supply wagons through a huge forest. Is his strategy genius, or does it spell certain death for the scouts?

With the Female Titan still chasing after Levi's squad, Eren considers turning himself into his Titan form, but Levi tells him to choose to be either a monster or a member of the Recon Corps. As Eren remembers what he has learned from the squad, he realizes that the danger and sacrifice they all share is not what binds them — it is trust. Now it is up to Eren to make the decision of who he will trust.

With the help of Levi's squad, the Recon Corps has successfully captured the Female Titan. As Commander Erwin and Captain Levi begin preparations to extract whoever is inside the Titan, will the Recon Corps discover its true identity, or does the Female Titan have one last trick up its sleeve?

After a last act of desperation, the person inside the Female Titan has escaped from the Recon Corps and reverted to their human form. Now, disguised as a member of the Recon Corps and equipped with Maneuver Gear, they finally catch up to their prey — Levi's squad.

The Female Titan has captured Eren after ripping him out of his Titan body, but Mikasa and Captain Levi give chase. Elsewhere, the Recon Corps begins preparations for the journey back home to the Wall with their numerous dead in tow.

With the identity of the Female Titan now revealed, Eren has reservations about fighting her. Mikasa, Armin, and the rest of the Recon Corps try to fight the Female Titan, hoping to distract her long enough to buy Eren time to come to terms with his feelings.

Eren, spurred on by his promise to kill every single Titan, unleashes the full power of his Titan form in the fight with the Female Titan. As their bloody battle draws to a close, it seems humanity may finally have a chance at survival. However, with many mysteries still left unsolved, what will await Eren, Mikasa, and Armin?

Coupled with the military's cover-up of a previous incident, the shocking discovery inside the Walls causes a stir. Elsewhere, while the new Scout recruits are held for observation, a surprising threat appears.

Utgard Castle comes crumbling down as Ymir desperately battles the Titans. Now, Christa must fulfill the promise they made long ago during winter training.

With a new enemy revealed, Eren and the Scouts fight back using all the techniques at their disposal.

When their group finally flees, Ymir wonders whether she should lie or stay true to herself, even if it means ruining the lives and future of those she cares about.

The pursuit begins as the Recon Corps battles their way to Eren. But as the Scouts start to take numerous casualties, Erwin executes a risky strategy.

The battle continues as Eren and the Scouts face many hard decisions. Who is the real enemy? What is the war really about? And what will the future hold for mankind?

After barely surviving Eren's recovery, a rising threat from the shadows puts everyone's lives in danger again.

Historia and Erwin look back on their past, revealing a shady government with a hidden agenda and inspiration for an uprising.

On the run and running out of time, the Scouts must entrust their lives to others if they plan on surviving.

As battle breaks out to prevent the ritual, Historia makes a shocking decision which leads to catastrophe.

The survey corps and the wall garrison must protect the Orvud District from the impending attack of Rod Reiss' titan.

Kenny recalls the life which has brought him to death's door, but he gets to decide whether to live on or not.

Having seen a glimpse of his father's memories, Eren attempts to track down a man hoping they might shed some light on his father's secrets.

The Scouts gather for a feisty feast before leaving to retake Wall Maria to uncover what's hidden in the basement once and for all.

The operation to retake Wall Maria commences in Shiganshina, the town where everything began. But when the Scouts arrive, something seems very wrong.

Against a rush of enemies, the Scouts scramble to defend their horses. But despite falling into a trap, they have their own surprise for the Armored Titan.

While one front in the battle is rained on by flames, the other is battered by boulders. With no way out, the Scouts are forced to fight or die trying.

As Erwin’s heroic charge buys Levi time to confront the Beast Titan, Armin comes up with a plan of his own that lays it all on the line.

While picking up the pieces from the costly battle, tensions rise when deciding which of the wounded Scouts to use the single syringe on.

The Scouts reflect on all they have gained and lost in their mission. With their enemies gone, Eren and the Scouts finally enter the basement to uncover the truth that will change everything.

A look into Grisha's memories shows Eren the many secrets his father was hiding, including one which led to his mother's demise.

Though it's met with hope and despair, the truth is made public. The Scouts then venture beyond the walls to see if it's everything they dreamed of.