One Piece Episode 524 English Dubbed Episode Title:Deadly Combat under the Sea! The Demon of the Ocean Strikes!.Episode Description:After ramming his ship into the Thousand Sunny, Caribou orders his men to attack, but Mohmoo, frightened by Luffy's and Sanji's appearance, flees with Caribou's crew. The Straw Hats capture Caribou while introducing himself. Nami tells the others if a ship goes straight, it can be destroyed by a volcano or crash into a mountain and Usopp clarifies that the Grand Line's currents can be very dangerous. Nami has the others put on jackets due to the deep sea's extreme cold temperatures. It is also revealed that the sea levels can be referred to as the Deep Currents. Just as they discuss about the currents, the ship heads straight for the Downward Plume, a massive undersea waterfall. However, they notice a large Kraken crushing ships for years and it destroys Caribou's ship, seemingly killing his crew. When Luffy prepares to attack the Kraken, Caribou has Luffy, Zoro and Sanji put on the Flutter Kick Coating suits, allowing them to exit the bubble. Chopper uses his Guard Point technique and Robin uses her Mil Fleur: Gigantesco Mano technique to prevent the ship from taking any damage while Luffy, Zoro and Sanji prepare to attack.