Arc StartEpisode 1
Colossal Titan — Wall Maria Falls
A Colossal Titan appears without warning and kicks a hole in Wall Maria, triggering the first Titan breach in 100 years. Eren watches his mother devoured. The series' central trauma begins here.
Attack on Titan Key Events — Episode Numbers for Every Major Moment
5 iconic moments · verified episode numbers · no spoiler ratings
Quick Episode Reference
All Key Moments — Detailed
Power-UpEpisode 5
Eren's First Titan Transformation
During the Battle of Trost, Eren is swallowed by a Titan. When the dust clears, a new mindless Titan is fighting on humanity's side — inside is Eren Yeager, reborn as a Titan Shifter.
RevealEpisode 31
Reiner and Bertholdt's Identities Revealed
"I'm the Armored Titan. And Bertholdt is the Colossal Titan." Reiner says it mid-conversation, calmly, as if lifting a weight. The two friends — the most trusted soldiers in the 104th — are the enemy. Nothing in the series hits harder.
BattleEpisode 54
Beast Titan vs Survey Corps — Erwin's Last Charge
Commander Erwin Smith leads a suicidal cavalry charge into the Beast Titan's barrage so Levi can get close. Nearly the entire Survey Corps dies. Erwin dies smiling. Levi puts Zeke down. The most devastating battle in the series.
Power-UpEpisode 79
Eren Activates the Rumbling — Founding Titan Unleashed
Eren Yeager reaches the Founding Titan through the Paths and activates the Wall Titans worldwide. Thousands of Colossal Titans begin marching toward the world. The genocide has begun. The protagonist becomes the final villain.
Episode numbers are verified against the aired broadcast order. Attack on Titan is the property of its respective creators and studios.