In a distant world, an important event is about to take place - the Great Merger of the three suns of the planet. The cruel Skeksis, ruling the world from the castle of the Dark Crystal, are frightened by the prophecy revealed to them: the surviving Gelfling from the Elven race, which they considered destroyed, will restore its fragment in the Dark Crystal during the Great Confluence. After going through many trials, Gelfling unravels the mystery of his mission and saves the planet from evil forces.