Episode 622 - Battle's Climax! Luffy's Vow to the Pirate Sovereign

Episode 622
The End of the Battle! Luffy’s Promise to the Pirate King
Japanese: 戦いの終わり！ルフィの海賊王への約束
Tatakai no Owari! Rufi no Kaizoku-Ō e no Yakusoku

The Straw Hat Pirates face new threats as they continue their journey through the Grand Line. They come across a new island, which is home to a deadly group of mercenaries hired by the World Government. The crew must outsmart their enemies and find a way to escape the island, all while continuing their search for the next clue to the treasure.