Attack on Titan Season 2 Summary

Discovery and Revelation

• Titan in the Wall: After Aaron's battle with Annie, a Titan is found within the wall. Pastor Nick urges the scouts to keep it out of sunlight.
• Interrogation of Pastor Nick: Hanji receives no answers from Nick but learns of a church directive to watch Christa.
• Armin's Theory: Armin theorizes walls are made from hardened Titan skin.

Scout Missions and Encounters

• Titan Breach Alert: Scouts encounter Titans and warn the populace, splitting into groups.
• Mikasa's Bravery: Mikasa buys time by killing multiple Titans.
• Beast Titan's Appearance: Beast Titan attacks, showing command over other Titans.
• Sasha's Return: Sasha returns to warn her village, heroically saving a girl.
• Connie and Reiner's Discovery: Discover a malformed Titan in Connie's destroyed hometown with no dead bodies.

Castle Refuge and Secrets

• Search for Wall Breach: Scouts find no breach but take refuge in a castle.
• Ymir's Secret: Ymir can read unknown language on supplies.
• Christa's Identity: Christa is revealed as Historia, an illegitimate noble's daughter.

Castle Attack and Ymir's Transformation

• Titan Attack at Night: Group is attacked at night; elite Scouts die.
• Ymir's Transformation: Ymir reveals her Titan form to save Scouts.

Shocking Revelations

• Rainer and Berthold's Confession: Reveal themselves as Armored and Colossal Titans, intent on destroying humanity.
• Aaron's Refusal: Aaron refuses their offer and fights back.

Battle and Escape

• Forest Standoff: Aaron, Ymir, Rainer, and Berthold wait in forest.
• Ymir's Decision: Ymir sides with Rainer, wanting to take Christa.
• Scout Rescue Mission: Scouts succeed in rescuing Aaron despite heavy losses.

Emotional Climax

• Eren's New Ability: Eren gains ability to control Titans, ordering them to attack Rainer and save remaining troops.
• Mikasa's Inspiration: Mikasa inspires Eren, leading to emotional and pivotal scenes.

Aftermath and Revelations

• Refugee Crisis: Citizens take refuge due to Wall Rose breach; food shortages arise.
• Hanji and Connie's Report: Concludes Titans in Wall Rose may be humans from Connie's village.
• Erwin's Declaration: Confirms they are closer to the truth about Titans.

Closing Scene

• Beast Titan's Mystery: Seen with a mysterious blonde man, ending Season 2 on a suspenseful note.