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One Piece S01E31, The Worst Man in the Eastern Seas! Fishman Pirate Arlong!S01E31

One Piece · Season 1

One Piece season 1 episode 31: The Worst Man in the Eastern Seas! Fishman Pirate Arlong!

Aired 12 July 200025 minRated M

7.3TMDB · 27 votesMark watched

Where to watch One Piece Season 1 in Australia

One Piece season 1 is streaming in Australia on Netflix (subscription).

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Stream (subscription)

Availability checked 16 November 2026.

What happens in “The Worst Man in the Eastern Seas! Fishman Pirate Arlong!”

The crew chases after Nami, who stole their ship, and Yosaku takes time during the trip to explain about Arlong and his Fishmen to Luffy and Sanji. Meanwhile, Usopp, Johnny, and Zoro arrive at the island Nami docked at.

Episode summary: TMDB.

Before you watch

  • It is episode 31 of 61 of season 1, so watch episodes 1 to 30 first.
  • It runs about 25 minutes.
  • TMDB users rate it 7.3 out of 10 (27 votes).

One Piece trailer

The official trailer for the series (no preview of this episode has been published).

One Piece trailerPlay video: One Piece trailer

More from One Piece Season 1

Previous · S01E30Set Sail! The Seafaring Cook Sets Off With Luffy!28 June 2000Next · S01E32Witch of Cocoyashi Village! Arlong's Female Leader!19 July 2000
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Every episode of Season 1One Piece episode guide

Episode names, air dates, runtimes, stills and ratings: TMDB. Air dates are the first broadcast anywhere; where it streams is our daily Australian check.