While going through the possessions of a deceased guest who owed them money, the mistress of the inn and her son find a treasure map that leads them to a pirate's fortune.
As Colin imagines himself in a series of adventures beginning with joining a pirate crew, his mother assures him that she will always be there to help if he needs her.
The crew of the "Barnacle" finds themselves entranced by an ethereal song, and only Jack, who seems unaffected by it, can defeat the mysterious force behind the dark spell.