Jack Vincent, an aristocrat forced by circumstances to become a smuggler, is caught and transported on the IIMS Success to a penal colony on Norfolk Island, off the New Zealand coast. Unhappily for Vincent, the ship's captain is none other than his brother-in-law, Lt.Harry Anderson. The two men have quarreled violently in the past over Anderson's treatment of Vincent's sister, and now Anderson subjects him to particularly harsh and humiliating treatment. Vincent stages a successful mutiny, casting Anderson and those loyal to him adrift, and plans to sail to America. When the Success is shipwrecked, Vincent is one of three survivors; but Anderson also survives the storm, and vows to pursue Vincent until he sees him hanged at Execution Dock. So begins a fight for survival for Vincent and his crew, complete with hostile natives, unscrupulous sea-traders, crazed prophets and buried treasure.