Episode 125 - Initial Journey to the Grand Line! The Epic Pirate Quest

Episode 125
The First Step Toward the Grand Line! The Great Pirate Adventure
Japanese: グランドラインへの第一歩！大海賊冒険
Gurando Rain e no Dai Ippo! Dai Kaizoku Bōken

The Straw Hat Pirates uncover a mysterious weapon that could change the balance of power in the Grand Line. As they investigate its origins, they are attacked by a powerful group of pirates who want to claim the weapon for themselves. Luffy and his crew must protect the weapon and ensure it doesn’t fall into the wrong hands.