One Piece: Season 1, Episode 978

1 - 978: The Worst Generation Charges in! The Battle of the Stormy Sea!

Luffy, Law, and Kid join the Akazaya samurai and begin to fight Kaido’s army. The three rivals from the Worst Generation compete with each other as they attack the enemy fleet with their ultimate skills. When it seems like they gain upper hand in the battle, another strong enemy appears to help Kaido’s army.