While is a standalone feature film rather than an episodic series, there are specific "prequel" episodes in the main anime and a primary plot for the movie itself that match your interest. Prequel Episodes (The "Carbonic King" Arc)
: "Special Edition! Clash! Luffy vs. the King of Carbonation". One Piece Movie 14: Stampede - Episode 1
You can find the movie and its prequel episodes on major anime platforms: While is a standalone feature film rather than
The movie was released in 2019 to celebrate the anime's . bringing together the Straw Hats
: "Special Edition! The Strongest Bounty Hunter, Cidre".
: The film features massive fan service, bringing together the Straw Hats, the Worst Generation (including Law and Kid), the Marines, and members of the Revolutionary Army like Sabo to take down Bullet. Where to Watch