One Piece Movie 14: Stampede - Episode 1 (2027)

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)

: 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 One Piece Movie 14: Stampede - Episode 1

To set the stage for the movie, the One Piece anime aired a two-episode tie-in arc. While is a standalone feature film rather than

: "Special Edition! Clash! Luffy vs. the King of Carbonation". bringing together the Straw Hats

You can find the movie and its prequel episodes on major anime platforms: