Arlong has trapped Luffy in the ocean and Zoro faces the six-sword wielding octopus Hatchan.

Arlong's officers have been defeated, but Sanji and Zoro prove to be no match for Arlong in their current state. However, with Luffy finally free, he just may be able to defeat the "most wicked man in the East Blue". Meanwhile, Nami finally gathers the courage to face Arlong.