Twin Delbert, the second-born, covets being Duke, and Lady Eudora wants to be his Duchess. Together, they arrange to have the Duke and firstborn killed. The Duke is killed, but greedy thugs keep Derrick alive to sell to Captain Zuber.
Lying in blood, Derrick hears his brother and lady pay off thugs. After being thrown on the filthy shark tooth deck, he never tells his title and names himself Wolf, determined to survive to return and have his revenge.
He survives brutality and torture, and two years later he escapes and returns to England.