BattleEpisode 20
Zoro vs Mihawk — First Encounter
Zoro challenges the world's greatest swordsman, Dracule Mihawk, and suffers his first major defeat — vowing never to lose again.
One Piece Key Events — Episode Numbers for Every Major Moment
16 iconic moments · verified episode numbers · no spoiler ratings
Quick Episode Reference
All Key Moments — Detailed
MomentEpisode 24
Nothing Happened — Zoro's Vow to Luffy
After being defeated by Mihawk, a gravely wounded Zoro makes his legendary vow to Luffy: he will never lose again.
BattleEpisode 228
Luffy vs Aokiji (Admiral Kuzan)
Luffy faces Marine Admiral Kuzan (Aokiji) for the first time, a gap in power that exposes how far the crew still has to grow.
Power-UpEpisode 272
Luffy's Gear Second Activated
Luffy unlocks Gear Second for the first time, dramatically boosting his speed and power using blood pump acceleration.
FlashbackEpisode 277
Robin's Backstory — The Tragedy of Ohara
The full story of Nico Robin's past is revealed: the Buster Call destroys her home island Ohara, leaving her as the sole survivor.
MomentEpisode 481
Ace Rescued at Marineford
Luffy finally reaches Ace and frees him from his shackles during the climax of the Marineford War.
DeathEpisode 483
Ace's Death — Fire Fist Ace Dies
Portgas D. Ace dies protecting Luffy from Admiral Akainu's magma fist — one of the most heartbreaking moments in the series.
FlashbackEpisode 493
Luffy and Ace — How the Brothers Met
The story of how Luffy first met Ace as children is shown in full — revealing the bond between the brothers.
BattleEpisode 625
Aokiji vs Doflamingo — Admiral vs Warlord
Former Admiral Aokiji (Kuzan) clashes with Donquixote Doflamingo in an intense battle during the Punk Hazard aftermath.
BattleEpisode 655
Sanji vs Doflamingo
Sanji confronts Donquixote Doflamingo directly, buying time for the crew but quickly overpowered by the Warlord.
MomentEpisode 671
Sugar Defeated — Toys Return to Human
Sugar is defeated, instantly breaking her Devil Fruit curse and restoring every toy on Dressrosa back to their human forms.
BattleEpisode 716
Diamante vs Kyros and Rebecca
The final battle between Kyros, Rebecca, and Diamante at the Flower Field reaches its climax in the Dressrosa arc.
Power-UpEpisode 726
Luffy's Gear Fourth (Boundman) Activated
Luffy reveals Gear Fourth — Boundman — for the first time, entering a new level of power to battle Doflamingo.
ReunionEpisode 991
Luffy Meets Yamato
Luffy meets Yamato, Kaido's son, for the first time at Onigashima — a pivotal introduction to a key Wano arc ally.
Power-UpEpisode 1071
Luffy's Gear Fifth — Nika Awakens
Luffy awakens his true Devil Fruit power as the Warrior of Liberation, Nika — Gear Fifth is revealed to the world.
MomentEpisode 1088
Luffy's Dream Revealed
Luffy finally shares his childhood dream with his crewmates — the dream he whispered to Shanks that was never shown until now.
Episode numbers are verified against the aired broadcast order. One Piece is the property of its respective creators and studios.