Both episodes emphasize the recurring theme of and Eren's evolving agency , where "Episode 20" serves as a benchmark for massive plot revelations in each respective half of the series.
Considered one of the most significant episodes in the entire series, it fundamentally changes how the audience views the story. Shingeki no Kyojin Episode 20
: The episode ends with the Female Titan letting out a piercing scream that calls all nearby Pure Titans to devour her body, allowing the human pilot to escape under the cover of the resulting smoke. Season 4, Episode 20: "Memories of the Future" Both episodes emphasize the recurring theme of and
: After a grueling chase through the Forest of Giant Trees, the Female Titan is successfully lured into a trap using a barrage of iron restraints. Season 4, Episode 20: "Memories of the Future"
: Eren struggles with his decision to trust Levi’s squad instead of transforming himself. Commander Erwin Smith reveals that to change anything, one must be prepared to sacrifice their humanity—justifying the high casualty count of the mission.
This episode is a masterclass in tension and tactical secrecy during the 57th Expedition Outside the Walls.
: Eren and Zeke travel through the memories of their father, Grisha Yeager . It is revealed that the Attack Titan has the unique ability to see the memories of its future holders.