Luffy and Boa Hancock arrive at Impel Down, and an unexpected alliance with Buggy the Clown gives Luffy the best chance at surviving the prison’s Crimson Hell. Princess Hancock flaunts her ample assets to secure a private chat with Fire Fist Ace, and Luffy is reunited with Bon Clay. Together, these former foes will fight their way toward the infamous inferno of the prison’s Level 4!