A boy named Monkey D. Luffy embarks on a journey to attain the greatest treasure: the one piece. After the former pirate king's public execution 22 years ago, the world has entered a great pirate era, and Luffy aims to be at the top.
Luffy, Zoro, and Nami find themselves imprisoned on an island overtaken by the deranged clown pirate, Buggy. Koby joins the Marines and proves his mettle.
Luffy, Zoro, and Nami meet Usopp in the Syrup Village a small, peaceful village. Usopp tells all sorts of lies about his adventures he has never been to his friend, Kaya, who has been sick in bed for over a year since she lost her parents.
Luffy, Zoro, and Nami fight their way through Kaya's mansion, which has now become a prison. Usopp enlists the help of Koby, Helmeppo, and the Marines. Luffy finally gets the ship of his dreams as Garp closes in.
Luffy and the gang are tested in their ability to fight together on the high seas. They arrive at Baratie, a floating restaurant, where they encounter Sanji, a young chef with a love of fine dining. A duel on the docks shocks the group.
The group is ambushed by a threat no one sees coming. After a hard-fought battle at the Baratie, Sanji finally follows his dreams while another crew member shows their true colors.
Garp is one step away from finding Luffy as he arrives at Baratie. Luffy and the boys all travel to Coco Village; in an attempt to find the estranged and distraught Nami, they meet a villager that has a dark and painful history with her.
Luffy and the others charge towards Arlong Park after a broken Nami utters the words "Help me." Luffy encounters Arlong meanwhile the gang fend off against Arlong's crew as a cheeky Buggy makes his escape. A new pirate crew is born.
