One Piece S04E64 - Give Robin Back! Luffy vs. Blueno!

For a while, Sogeking talks with Oimo about how he and Kaashi came to support the marines and hears a familiar story. The majority of the episode is a Little Garden flashback. Soddom the Giant Bull takes severe damage and urges those riding him to run before he collapses. Back at the fight between Blueno and Luffy, Luffy throws the first punch to initiate the battle.