Episode 48 - Fight Until the Finish! Luffy against Arlong, the Ultimate Showdown

Episode 48
Battle to the End! Luffy vs. Arlong, the Final Clash
Japanese: 最終決戦！ルフィVSアーロン！
Saishū Kessen! Rufi VS Āron!

The crew reaches a new island, where they encounter a mysterious and powerful pirate crew. The Straw Hat Pirates must outsmart these new enemies while uncovering more about the island’s secrets. Luffy’s unwavering spirit continues to inspire his crew as they face even more dangerous foes.