Episode 550 - The Last Battle Begins! Luffy’s Final Challenge

Episode 550
The Last Battle Begins! Luffy’s Final Challenge
Japanese: 最後の戦いが始まる！ルフィの最後の挑戦
Saigo no Tatakai ga Hajimaru! Rufi no Saigo no Chōsen

The Straw Hat Pirates manage to defeat the bounty hunters, but they realize they are being pursued by the World Government's elite agents. As they sail onward, the crew encounters a strange island filled with puzzles that may hold the final clues to the treasure’s location. The stakes are raised as the crew must solve these puzzles before their enemies catch up with them.