"A Life-threatening Break-in! The Underwater Prison Impel Down!" is the 422nd episode of the One Piece anime. It is the first episode of the Impel Down Arc.
Garp visits and speaks with Ace in Impel Down. It is revealed that Buggy has been captured and taken to Impel Down. Luffy and Hancock arrive at last with him hiding under Hancock's cloak. They are taken inside but find out that Hancock has to go through a full-body search.
Vice Admiral Garp talked proudly to Ace at Impel Down about some of Luffy's actions, and mentions that they both have the blood of a world class criminal. Ace claims that Whitebeard is his only father since he took care of him after he went wild.
Meanwhile, on Vice-Admiral Momonga's ship in Boa Hancock's disguise, Luffy is worried about Ace. On the deck of the Marine Ship, Momonga spotted Captain Buggy's ship and it seems familiar to him. The Buggy Pirates spotted a Sea King that emerged adjacent to them and fell back into the sea. The Buggy Pirates were worried about their Captain that was taken away to Impel Down and wanted to free him, but it would be impossible for them to break inside. Alvida suggests that they should take a small boat if they want to get to Impel Down, so they conclude it would be too dangerous for them and quit the breakout attempt.
Prisoners of Impel Down are being tortured; a new prisoner refuses to obey another prisoner's orders and starts a fight. Minotaurus stopped them and took them both to a different prison cell where they were eaten alive.
Momonga's ship arrives at Impel Down through the Gate of Justice. Other Marine ships wait at the entrance of Impel Down. With all of the Marine ships, Luffy wonders if someone used a Buster Call. Momonga, Hancock, and Luffy, hidden under Hancock's cloak, departed the ship and enter Impel Down. Hancock struggled to put up with the Marine's love for her, but Momonga politely suggested to her not to petrify them. Around about this time, Buggy the Clown escaped from his cell on Level 1.
Prisoners inside Impel Down were screaming. Hannyabal greeted Momonga and Hancock at the prison. Hannyabal told Momonga that he wanted to see Warden Magellan of Impel Down. Vice Jail Manager Domino escorts Hancock to a room where she could privately search Hancock as usual with all visitors. Domino took her search on Hancock seriously by making Hancock wear a Seastone handcuff to disable her Devil Fruit powers. Hancock accepted it, but her heart is beating from the tension.
Characters in Order of Appearance
- This is the first episode of the Impel Down Arc.
- The original premiere broadcast of this episode contained a preview at the end for One Piece Film: Strong World.
- The preview for the next episode is shortened from its usual length, likely owing to making room for the preview for Strong World.