The Great Heep is a 48-minute, animated television special that aired on June 7, 1986. It is part of the Star Wars franchise and was a follow-up to the Star Wars: Droids series
Mungo Baobab and his droids, Threepio and Artoo, are trailing the Rainbow comets of Manda in search of the fabled Roon system. Before they get there, they make an enemy out of the greedy Governor Koong. On Roon, they meet Auren Yomm and join her Umbo racing team in the Roon Games. Mungo takes up his old uncle Ogger's quest of finding the source of the valuable Roonstones. Meanwhile, Koong uses germ warfare against the rebellious province of Umboo and it becomes a race against time to find a cure for the Rooze infection.
Artoo, Threepio and a broken down android are traded into the hands of young miner Jann Tosh. The android turns out to be an alien with amnesia and a price on his head. It is in fact Mon Julpa, prince of Tammuz-an, who has been put in this predicament by the power hungry vizier Zatec-Cha. Jann, the droids, and a female freight pilot named Jessica Meade help Julpa claim his throne, battle the Pirates of Tarnoonga and settle a dispute with Tammuz-an clan leader Lord Toda.