A young orphan and his mates are shipped off from Victorian England to a distant island ruled by the evil King Zarboff. At sea, the boys are discovered by a precocious young girl named Molly, a Starcatcher-in-training. They find a mysterious trunk in the captain’s cabin containing starstuff, a powerful, celestial substance. The journey quickly becomes a thrilling adventure when the ship is taken over by pirates determined to claim the trunk and its treasure.