One Piece S00 E03 Open Upon the Great Sea! A Father's Huge, HUGE Dream!

"Set sail for One Piece!"

Three children, Amanda, Milia and Holy, are being held captive on a pirate ship. Their father, who was a pro treasure hunter, told them the whereabouts of a great treasure. Luffy and crew try to save them but their opponents have a dangerous ability in their sleeves.