There's no place for a girl in Mary's world; and now as a sailor aboard a Caribbean merchant ship, Mary's livelihood-- and her safety-- depends on her ability to disguise her gender. Then pirates attack the ship, and in the midst of the gang of cutthroats Mary spots something she never could have imagined: a girl pirate, gun and sword in hand. In a split-second decision, Mary earns herself the chance to become a pirate alongside Calico Jack and Anne Bonny. When Mary finds herself falling for the captain's mistress, she risks everything-- her childhood love, her place among the crew, and even her life.