This animated series revolves around the sea-bound adventures of Monkey D. Luffy, a young man with dreams of becoming the mightiest pirate around. When a group of pirates kidnaps Monkey, he escapes and flees to a nearby naval base. But no sooner has Monkey outwitted the pirates than he realizes he's camped out on the property of a terrifying captain. With a notoriously bad pirate about to walk the plank, the aspiring pirate king finds his chance to prove himself a hero.