Episode 834: The Mission Failed!? Big Mom Pirates Counterattack!
One Piece Episode 834 „The Mission Failed!? Big Mom Pirates Counterattack!“. Adapts chapter 864. First aired: 2018-04-29.
- Read on in the manga from: Chapter 865 (Volume 86 – Emperor Assassination Plan)
- Title (Japanese): 作戦失敗!? 反撃のビッグ・マム海賊団
- Title (romaji): Sakusen Shippai!? Hangeki no Biggu Mamu Kaizoku-dan
- First aired (Japanese): 2018-04-29
- First aired (German): 2021-04-08
- Category: Story
- Chapter adapted: Chapters 864