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)
More Seasons
Movie 1: The Movie
Movie 2: Clockwork Island Adventure
Movie 3: Chopper Kingdom of Strange Animal Island
Movie 4: Dead End
Movie 5: The Curse of the Sacred Sword
Movie 6: Baron Omatsuri and the Secret Island
Movie 7: Karakuri-jou no Mecha Kyohei
Movie 8: Adventures in Alabasta
Movie 9: Episode of Chopper Plus
Movie 10: Strong World
Movie 11: 3D Strawhat Chase
Movie 12: Film Z
Movie 13: Film: Gold
Movie 14: Stampede
Characters & Voice Actors

Monkey D., Luffy
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Tanaka, Mayumi
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Nami
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Okamura, Akemi
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Nico, Robin
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Yamaguchi, Yuriko
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Roronoa, Zoro
Main
Nakai, Kazuya
Japanese
Sanji
Main
Hirata, Hiroaki
Japanese
Tony Tony, Chopper
Main
Ikura, Kazue
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