The movie follows Luz Noceda, a teenager who discovers a portal to the Boiling Isles, a magical realm. She befriends Eda Clawthorne, a witch, and her demon companion, King. Luz also forms friendships with other witches, including the prodigious Abomination witch Amity Blight, who suddenly becomes her girlfriend, the empathetic plant witch Willow Park, the enthusiastic illusionist Gus Porter, and the Golden Guard, Hunter Deamonne, who surprisingly serves the villainous Emperor Belos. Together with her friends, Luz confronts the looming threat and triumphs over darkness, bringing hope to the Boiling Isles.
