: "Special Edition! Clash! Luffy vs. the King of Carbonation".
The movie was released in 2019 to celebrate the anime's . One Piece Movie 14: Stampede - Episode 1
You can find the movie and its prequel episodes on major anime platforms: : "Special Edition
: The world's most infamous pirates gather for the Pirates Festival , organized by the mysterious Buena Festa. The main attraction is a race to find a lost treasure that once belonged to the Pirate King, Gol D. Roger . the King of Carbonation"
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)
: These episodes follow Luffy as he attempts to restock the Thousand Sunny's cola supply on an island ruled by the Cidre Guild, a group of bounty hunters. He reunites with Boa Hancock, and they eventually obtain an invitation to the Pirate Festival featured in the movie. One Piece Movie 14: Stampede Plot