In order to cast the world into eternal night, Darkness (Tim Curry) sends the goblin Blix (Alice Playten) on a mission to kill the unicorns that guard the light and bring him Unicorn horn. Blix and his colleagues Pox (Peter O'Farrell) and Blunder (Kiran Shah) follow impetuous Princess Lili (Mia Sara) and her forest-dwelling paramour Jack (Tom Cruise) who kiss for hours in the forest. After failed attempts to progress their relationship, Jack takes Lili to the lair of the unicorns, something that is forbidden amongst mortals. When Lili distracts the stallion by stroking it, another forbidden act, Blix shoots it with a poison dart from his Blowgun, and the unicorns flee. Lili makes light of Jack's fears that she broke the law of the forest by touching the sacred animals and sets him a challenge by throwing her ring into a pond, declaring that she will marry whoever finds it. While Jack dives in after the ring, the goblins find the dying stallion and sever its alicorn. An apocalyptic winter descends; Lili runs off in terror and Jack is barely able to break through the surface of the now frozen pond.