After crushing the empire of Thulsa Doom, the evil servant of the serpent-god, Set, in Conan the Barbarian (1982), Conan, mightier than ever, agrees to embark on a new dangerous quest, on a promise of a tempting reward. Recruited by the icy Queen Taramis of Shadizar, the untamed sword-wielding barbarian, along with a band of equally reckless outcasts, escort the ruler's niece, Princess Jehnna, on a perilous journey to retrieve the Jewelled Horn of Dagoth, the Dreaming God.
However, treason threatens not only the mission but also their very lives, as the amphibious oceanic deity can plunge the entire world into chaos and darkness, once it awakens. In a cruel, barbaric world, can Conan defeat terrible mortal and supernatural adversaries to save humankind?