Jim Henson co-directs, produces and lends his voice to this classic animated adventure set on the planet Thra. 1000 years ago, a mysterious crystal was broken creating two new races, the evil Skeksis and the kind Mystics. With fueding all around him, Gelfling Jen (voice of Henson) - the only one left of his kind - dreams of the day when he can restore peace to his planet. A Mystic tells him that in order to return Thra to its former glory Jen must heal the crystal before the three suns align. If he fails, the Skeksis will be free to rule forever...