Ep 3. Old Story

Mikasa, Armin, and Eren continue to struggle with the aftermath of their battle against the Female Titan. The Survey Corps brings their injured comrades back to the Inner District for treatment while they mourn the loss of their fallen comrades. However, the biggest shock comes when they find out that Eren has been taken away by the Military Police.

Hange and Levi meet with Commander Erwin to discuss their next steps. Erwin reveals that they have evidence that there is a conspiracy within the Walls and the Military Police are involved. Hange suggests that they interrogate Pastor Nick, the leader of the Church of the Walls, as he may have information about the conspiracy.

The next day, the team sets out to bring Pastor Nick in for questioning. Along the way, they are ambushed by Titans, but they manage to defeat them with the help of the Titan capture squad. They finally reach Pastor Nick's secret hideout and take him into custody.

During Pastor Nick's interrogation, he reveals that there is a secret organization called the "Wall Cult" that worships the walls and has knowledge about the Titans. They are afraid of what will happen if their secrets are exposed and have been working with the Military Police to protect themselves. Pastor Nick also reveals that Historia, a member of the Wall Cult, may hold the key to unlocking their secrets.

Meanwhile, Eren is being held captive by the Military Police and is visited by a mysterious woman who reveals that she knows who he really is. She shows him a key that could unlock the secrets of his basement and tells him that use it to save humanity. Eren is confused by her cryptic message, but knows that he must escape to find out what lies in his basement.

As the team prepares to leave with their new information, they are attacked by a group of Titans. The fight is intense, and they struggle to fend off the Titans. Just when all hope seems lost, a new Titan appears and fights alongside them. It is revealed to be Historia, who has the ability to control Titans.

The episode ends with Historia joining the Survey Corps and promising to help them uncover the secrets of the Walls. The team heads back to the Inner District with a newfound hope and determination to uncover the truth and save humanity from the Titans.