One Piece: Episode of Alabasta - Prologue
Genres: Action, Adventure, Fantasy
Type: Special, Episodes: 1
Aired: Aug 20, 2011
Studio: Toei Animation
Source: Manga
Rating: PG-13 - Teens 13 or older
Synopsis:
Prologue to the movie, showing the Whiskey Peak arc, exclusive to some TV airings of the movie.

(Source: AniDB)