After Luffy and Rayleigh go their separate ways, Rayleigh draws a line to prevent the Marines from coming any further to the Straw Hats. However, Perona appears and it is revealed that a battleship is headed for the Thousand Sunny. Meanwhile, Brook boards the Thousand Sunny. Using one of his birds, Chopper returns to the Thousand Sunny with Sanji, Luffy and Zoro on board, but as soon as they finally reunite, the Thousand Sunny is attacked. Hancock stops the Marines from harming the Straw Hats and Sanji is dismayed at Luffy for befriending the Snake Princess. Meanwhile, Heracles uses his beetles to crush a Marine squadron, Haredas uses the weather technology to distract another squadron. Franky goes underwater and uses the airbag to create a bubble to prepare the ship for the deep oceans. Chopper's bird attacks another battleship, Sanji destroys another ship by deflecting a cannonball and the Okamas defeat another Marine squadron. Luffy and the others finally leave the Sabaody Archipelago for Fishman Island.