Luffy and Boa arrive at Impel Down, but only thirty-three hours remain until Ace's execution. To save him, the Snake Princess must find a way to hide Luffy during her full-body search!

Time is running out on Ace, so Luffy teams up with a scoundrel who's going to pieces trying to escape Impel Down. There's no love lost between Buggy the Clown and the Straw Hat captain, but they'd better work together if they want to survive.

Luffy must part ways with a priceless treasure map before Buggy the Clown agrees to lead him through the bloody tangle of Blade Trees and Spike Needle Grass that make up Impel Down's Crimson Hell!

Luffy and Buggy the Clown could end up as hippo food if they aren’t careful in Impel Down’s Wild Beast Hell. Of course, the rubberman might find that a better fate than dealing with the prison’s putrid warden!