Teen pirate princess Alosa has delivered the final treasure map fragment to her father, pirate king Kalligan, when she discovers she is not exempt from his treachery. He has imprisoned her siren mother aboard a ship for years, and by releasing her, Alosa signs her own death warrant. Running from her father, keeping her crew alive, and racing to beat him to the treasure keep her so busy she almost misses the fact that she?s falling in love with former rival Riden.