One Piece Movie 7: Karakuri-jou no Mecha Kyohei
The Straw Hat crew salvages a treasure chest from a sinking wreck, inside which they find an old lady. To get the pirates to take her home, she promises them the treasure of a golden crown on her island: Mecha Island. Upon arrival, the crew is attacked by the lord of the island but he has a change of heart and decides to seek their help to solve the mystery of the Golden Crown.(Source: ANN, edited)
All Installments
One Piece Movie 7: Karakuri-jou no Mecha Kyohei
Seasons
One Piece Movie 1
One Piece: Clockwork Island Adventure
One Piece: Chopper Kingdom of Strange Animal Island
One Piece: Dead End
One Piece: The Curse of the Sacred Sword
One Piece: Baron Omatsuri and the Secret Island
One Piece Movie 7: Karakuri-jou no Mecha Kyohei
One Piece: The Movie 8 - Adventures in Alabasta
One Piece Movie 9: Episode of Chopper Plus - Fuyu ni Saku, Kiseki no Sakura
One Piece: The Movie 10 - Strong World
One Piece 3D: Strawhat Chase
One Piece: The Movie 12 - Film Z
One Piece: The Movie 13 - Film: Gold
One Piece: The Movie 14 - Stampede