Cover Page: Straw Hats and Animals: Karoo takes a dog out for a walk.

Impel Down was in chaos, with Luffy and some prisoners on Level 4, Buggy and prisoners on Level 2, and the Blackbeard Pirates at the main entrance. Meanwhile, Ace was on his way to his execution.

As Vice Admiral Onigumo escorts Ace to Marineford, he is informed that Luffy is leading a riot in Impel Down. Meanwhile, at Marineford, a panicked soldier informs Fleet Admiral Sengoku of Blackbeard's mysterious disappearance, a shocking event considering the danger of Whitebeard's imminent attack. He also tells Sengoku about a mysterious marine vessel with no deployment authorization that has arrived at Impel Down.

At the great prison, Impel Down, Blackbeard and his crew arrive and quickly defeat a group of jailers, claiming that they are on the same side. The rest of the facility is warned of Blackbeard's betrayal, and the pirates proceed into the prison.

Due to these events combined with the riots, Vice Warden Hannyabal is beginning to panic and suggests that he and some jailers escape, but Magellan contacts him, revealing that the riot on Level 2 has been stopped by sealing the entrances and exits. Magellan tells Hannyabal to stall on Level 4 until he arrives. Meanwhile, on Level 6, former chief Shiryu is being let out of his cell in order to help the situation. He is warned by Magellan that there will be no second chances, and is told to go after Blackbeard. As soon as the transmission is stopped, Shiryu slaughters several guards with his newly reunited blade, apologizing for his actions.

On Level 4, Luffy and his group are fighting their way through the guards, releasing many prisoners as they go. Chief Guard Saldeath attacks with his Blue Gorillas, but Ivankov beats them back. As they proceed, they find the path blocked by Sadi and the three Jailer Beasts. Many of their forces are defeated, but Luffy, Crocodile, and Jinbe defeat the three beasts with their individual attacks.

Chapter Notes:
The Blackbeard Pirates arrive at Impel Down.
Shiryu is released from his cell.