Episode 451

"Cause the Last Miracle - Breaking Through the Gate of Justice" is the 451st episode of the One Piece anime.

Short Summary
Bon Kurei puts himself on the line to save Luffy and the others, by disguising himself as Warden Magellan. However in doing so, sacrifices any chance of his own escape, as the real Magellan corners him in the control room for the Gate of Justice.