Luffy insists on fighting Aokiji alone and risks it all so the crew can save the frozen Robin. 

Luffy, Nami, and Usopp get strange greetings from the residents and they get to experience the roller coaster-like channels of Water 7. Luffy's group finds out that some pirates had been beaten at the hands of some powerful craftsmen; the Galley La Company. Chopper loses Robin and some strange new people threaten Zoro back on the ship.