One Piece: Season 1, Episode 451 - ProjectFreeTV

1 - 451: Come, Final Miracle! Break Through the Gate of Justice!

Mr. 2 puts himself on the line to save Luffy and the rest, by disguising himself as Warden Magellan, but 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.