One Piece Season 1, Episode 437 : For His Friend! Bon Clay Goes to the Deadly Rescue!

After being hit by Magellan's poison Luffy is placed in level 5. This is the freezing hell. Mr.2 looks for the cure while impersonating the Vice Warden and finds out that it is too late for Luffy. He goes to see Luffy with Mr.3 and Buggy but is faced with wolfs that protect that area. Now he must fight those wolfs in the cold with no shirt by himself.

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