Drawn to the ocean, ten-year-old Tabitha wanders the marshes of her small coastal village and listens to her father's stories about his pirate voyages and the mother she never knew. Since the loss of his wife Helen, John has remained land-bound for their daughter, but when Tab contracts yellow fever, he turns to the sea once more. Hoping the salt air will heal her, he takes her aboard a sloop bound for Bermuda.