Because One Piece is released differently across regions, the contents of "Season 8, Volume 1" depend on the specific edition: One Piece: Season 8 - Voyage One - Amazon.com

In the One Piece home video releases, "" (often referred to as Voyage One in English releases) typically covers the beginning of the Marineford Arc for North American (Funimation) versions . However, in original Japanese releases, the 8th Season is dedicated to the Water Seven Arc . DVD/Home Video Variations