Meet Lady Sin: a Spanish Donessa who searches the seven seas on a quest for vengeance. It's 1687, and pirate captain Blackjack Tom sets siege on a Spanish galleon. All the brave Spaniards are killed - save for one: the beautiful, aristocratic Donessa, who vows to take revenge. She seizes control of one of Blackjack Tom's ships; is rechristened Lady Sin, the most bloodthirsty - and comeliest - lady pirate on the high seas; and sets sail to find her...