Reiner suffers a mental breakdown, confusing his "Soldier" persona with his true "Warrior" identity.
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A flashback reveals how the Anti-Marleyan Volunteers (led by Yelena) first arrived on Paradis Island. Shingeki no Kyojin Episode 9
Historia defies her father and chooses her own path, setting her up to become the true Queen of the Walls.
Eren partially transforms to block a cannonball, creating a giant Titan ribcage to protect his friends. Season 2, Episode 9: "Opening" Reiner suffers a mental breakdown, confusing his "Soldier"
The Survey Corps uses barrels of gunpowder to blow up Rod's face as he drags it along the wall. Season 4, Episode 9: "Brave Volunteers"
Eren survives being eaten by a Titan and emerges from its carcass in Titan form. Historia defies her father and chooses her own
Paradis begins using modern technology and firearms captured from Marleyan scout ships.