Whoever releases the mysterious Black Cauldron's power will be invincible. The fearsome Horned King will do anything to possess it, but he is challenged by the most unlikely adversary: a young assistant pig keeper named Taran, who dreams of doing heroic deeds. With a motley team including the brave Princess Eilonwy, a minstrel named Fflewddur Fflam and Hen Wen, a remarkable pig who can predict the future, Taran embarks on a quest to stop the Black Cauldron's evil once and for all. Will he have the courage to succeed?