A young boy, Conan, becomes a slave after his parents are killed and tribe destroyed by a savage warlord and sorcerer, Thulsa Doom. When he grows up he becomes a fearless, invincible fighter. Set free, he plots revenge against Thulsa Doom.
Conan and his companion, the thief Malak, are confronted by Queen Taramis. She tests their combat ability with several of her guards. Satisfied, she tells Conan that she has a quest for him. He refuses her, but when she promises to resurrect his lost love, Valeria, Conan agrees to the quest. He is to escort the Queen's niece, Jehnna, to a far away castle to retrieve the magic Horn of Dagoth