Joanna is the niece of an old pirate named Flint, who was the right-hand man of the famous Captain Ahab. Jack spends the night with her in the hope of discovering the whereabouts of a map that reveals the secret location of Ahab’s treasure. When she discovers his true intent, Joanna decides to search for the treasure herself. Her initial attempt yields little success. She embarks on a series of exciting adventures, getting involved with a sultan’s harem and a band of female pirates along the way. Finally, Joanna and her pirate friends overcome their enemies, and with Ahab’s treasure in their hands create a new nation “Paradise Island.”