One Piece "3D2Y": Overcome Ace's Death! Luffy's Vow to his Friends (2014) is a Animation, Action, Adventure, Comedy, Fantasy film that follows the special takes place during the two year before the Straw Hats reunite on Sabody. Luffy is currently in Rusukaina training to get stronger to take on the New World. However the training is interrupted when Hancock's sisters, Marigold and Sandersonia, are kidnapped by the Byrnndi World, a pirate who was locked away on Level 6 of Impel Down but escaped during Luffy's invasion to save Ace, in order to lure Hancock to him and use her as a hostage against the World Government due to her Shichibukai status. Thus Luffy and Hancock head off to confront him and save Hancock's sisters. Currently, you can watch One Piece "3D2Y": Overcome Ace's Death! Luffy's Vow to his Friends on Netflix, Crunchyroll Amazon Channel, Netflix Standard with Ads, Apple TV Store. Streaming availability may vary by country and platform over time. It has a user rating of 7.1 out of 10 from 187 votes. Fans of animation movies may also want to explore similar titles below.