British pirate William Kidd and his bounty of ruthless pirates capture Admiral Blayne's treasure ship and hide the bounty in a cave, hoping to come back for it eventually. Three years later, Captain Kidd, posing as a sea captain, offers his services to the king as an escort ship. Seeking a social position, Kidd also negotiates for Blayne's title and property, if he can prove Blayne was associated with piracy. On his mission, Kidd is unaware that Blayne's son, Adam, is among the crew, determined to clear his father's name.
