One Piece (1999)

S01E41 Luffy at Full Power! Nami's Determination and the Straw Hat!

Although Sanji and Zoro have taken down Arlong's crew, they find themselves struggling against Arlong himself in their weakened condition. Fortunately, with Luffy now liberated, he stands a chance to take on the "most ruthless man in the East Blue." At the same time, Nami musters the strength to confront Arlong head-on.