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.
C3PO and R2D2 end up marooned on a planet's junk yard and meet up with two aspiring landspeeder racers named Thall Joben and Jord Dusat.
While traveling to the Bakda speeder races, Thall, Jord, Kea, C3PO, and R2D2 are forced to make a detour to the planet Annoo to pick up a hyperdrive unit after their ship's unit is lost due to Threepio's incompetence. Living on Annoo is Kea's mother whom they visit as well as Tig Fromme's father Sise Fromme, the notorious gang master. Sise learns of Thall and Jord's eminent arrival and prepares to deal with them. On Annoo, the droids discover a secret rebel base deep inside Kea's mother's house, linking her with the rebel alliance. That night a droid, sent by Sise and Tig Fromme, attacks Thall, but Kea saves him by destroying it. Kea's mother than explains to Thall and Jord that Tig Fromme is building the Trigon 1, a powerful weapon satellite, and he was trying to destroy Thall because he and Jord knows of its location, which Sise wants to keep secret. She then tells them that their only hope is to destroy the Trigon 1 before it leaves for Tig Fromme's base on Ingo. Jord then comes up
On Ingo, Thall and R2D2 go to hide the Trigon 1 from Sise Fromme and his gang, leaving Kea and C3PO at a speeder shop. A band of Sise Fromme's clone soldiers ambush Kea and Threepio, while Thall and Artoo are away. They return from hiding it, however, in time to save them from the ambush, and the four speed away from the clones in the White Witch. The clones jump into their speeders and chase them into a trap they prepared. The captured heros are brought to Tig Fromme's stronghold where he interrogates them, demanding to know the location of the Trigon 1. Tig also reveals that he has captured Jord and Kea's mother as well, and that they will not be freed unless he learns of the location of the Trigon. Thall then demands to speak with Tig's father, Sise Fromme. Thall tells Sise the location, though he withholds the fact that he and Artoo rigged it to collide with Fromme's stronghold, thus destroying it. Sise sends Tig to retrieve it on Ingo, and, instead of freeing Jord and Kea's mother
While on their way to the 'Botha Speeder Race' our group of friends come under attack by the Fromms but Artoo succeeds in fixing the external hyperdrive and they escape through hyperspace in the nick of time. Their ship's landing gears are damaged from the attack however, and they have to make a crash landing. Upon landing C-3PO and R2-D2 meet PROTO-1, an old service droid, who informs them the group he'll repair their ship for them while they go in the races. Threepio, however, does not trust him. Elsewhere, the Fromms have landed on the same planet and Sise has acquired the help of the notorious bounty hunter, Boba Fett, to capture the group who destroyed his base and his expensive weapon - the Trigon One. Meanwhile, Jord - who was injured during the landing - finds himself unable to drive the ""White Witch"" in the race due to a broken arm, therefore Thall will have to compete. C-3PO, with the assistance of his new friend - a droid named BL-17 - solves the other problem by finding
The droids get a job in a cafe on a mining planet and are soon to lose it due to their clumsy antics. To find another master they place themselves in a droid auction but along with an android they get sold to one of the creatures from the cafe - Yorbo, a known droid abuser. Luckily a young miner named Jann Tosh witnesses how the droids are treated by their new owner and decides to trade his newly acquired mining droid for Artoo, Threepio and the android. Yorbo tells his boss, Kleb Zellock of his prize for which Kleb Zellock notices Jann Tosh - whom he has a bounty on - and demands Yorbo to catch them. Quickly, Tosh and the droids make their escape. Tosh takes the droids back to his home where he is cursed at by his uncle for not bringing back the mining droid. Suddenly the android falls from Tosh's speeder and alerts their attention. Artoo tells Threepio that the stranger is not in fact an android but a pure lifeform for which Threepio relays the message. Jann removes the stranger's
The droids and Jann Tosh return with Julpa to his home planet, Tammuz-An in an attempt to over throw the evil vizier Zattech Zash and reclaim his throne.
The droids, Jess Meade and Jann Tosh are on their way to Tammuz-An with the precious cargo of fuel which is to be used to build up Mon Julpa's defences. During their trip however they are attacked by Kybo Ren and his pirates who, using a tractor beam, manage to take control of both the cargo ship and Jann's A-wing fighter and transports them to the water planet of Tarnoonga. Upon arrival Jess is taken to Ren's quarters to be his companion while Jann Tosh and the droids are to meet their fates with a large sea monster. Managing to escape the sea monster, Tosh and the droids soon discover that Kybo Ren and his army are planning to attack Tammuz-An. As they regroup with Jess who also manages to escape, they make it to their respective ships - Meade hops aboard the cargo ship while Jann and the droids get inside Jann's A-wing - and leave Tarnoonga. On their way back to Tammuz-An however they find themselves once again at Kybo Ren's mercy as he displays his secret weapon - a stolen star
Mon Julpa is in peace talks with warrior Lord Toda in the hope that their conflicts may end and a alliance be found but when Kybo Ren escapes from his prison cell within the palace of Tammuz-An and kidnaps Lord Toda's daughter, Gerin, things aren't looing good for Mon Julpa. Threepio, who's clumsiness in a way allowed Kybo Ren to escape, blames himself for the kidnapping and sets out with his astromech companion, Artoo-Detoo, master Jann Tosh, and friend Jess Meade to the Bog moon of Bogden in the hope of rescuing Gerin. Kybo Ren, however, is expecting them and with his ferocious beasts within his hideaway to stop intruders the odds are looking against our heroes. Worse yet Ren has made a deal with Julpa and Toda - return my army to me as well as Mon Julpa and you will regain Princess Gerin, something which Lord Toda is willing to co-operate on.
Jann Tosh and the Droids are escorting Lord Toda's son Coby, a bad-mannered little brat, to the Space Academy which he has just been accepted into. Stopping on Zelakesh (a dangerous world notorious for its criminals) for a connecting flight, Tosh goes to enquire about the departure time while Coby begins wandering around in search of adventure with the Droids attempting to keep an eye on him. Coby, who has brought his pet Ingey with him, sees a Starhunters ship and becomes curious. However Ingey jumps from his arms and is kidnapped by one of the Starhunters, who takes the animal to his ship and blasts off. Coby and the Droids act quickly, stealing a Blackhawk destroyer they follow the Starhunters and find themselves dragged through hyperspace to another world. Here they come across a race of creatures whom many of their kind have been enslaved by the Starhunters. Threepio comes up with a plan to save these creature's friends and also Coby's pet Ingey. But mimicing a Jugaloo ain't alway
Mungo Baobab becomes obsessed with locating a powerful and valuable resource called Roon stones. Along with R2-D2 and C-3PO, the three of them set out on a journey through uncharted space to find the Roon system only to be diverted when they get sucked into the tractor beam of a salvage ship owned by the greedy Governor Koong. Koong has recently made a deal with the Empire via Admiral Screed and believes Baobab and the Droids have arrived on behalf of the Emperor for which our friends play with the idea. This changes however when Screed and his stormtroopers arrive themselves. Mungo, Threepio and Artoo attempt to escape but their efforts are thwarted and if someone doesn't act quickly Mungo Baobab will be a prisoner of the Empire, Artoo will have a ghastly new owner and Threepio is set for reprogramming....
Having escaped the likes of Koong and Screed. Mungo Baobab, C-3PO and R2-D2 make their way for the planet Roon but upon arriving to the system they are gunned down by Koong's ships and crash land on Roon. Believing them to be dead, Koong proceeds with his plans with Admiral Screed. Mungo and the droids are okay but their ship is in desperate need for repair. To make matters worse they are attacked by odd mud creatures until a girl named Auren Yomand her father intervene, rescuing our friends. Oran is on her way to participate with her team in an event called the Roon Games. Her team has won the games three years running and is the only thing stopping Governor Koong from having complete control over the planet. Koong's fierce and sinister assistant Gaff attempts to destroy Oran and her new friends by awaking a large beast which lives underground. Managing to escape however, our heroes make it into town where Oran's team prepare for the games but their troubles ain't over yet. A droid
Mungo Baobab has just about given up hope on finding Roon stones and together with the droids are about to return to Manda (Baobab's home planet). Fearing Auren Yomwill not even say goodbye, Baobab is disheartened while the droids pick up the hunch that he has strong feelings for her. Oran however, and her father, finally arrive to see them off and Oran gives Baobab a farewell present - a roon stone. Upon seeing this, Baobab becomes determined to find out where it came from which leads the group into a haunted space craft (or so Artoo believes) where they meet the old hermit Olgun. Olgun recognises the colours Mungo wears to be that of the Baobab clan and to Mungo's surprise Olgun turns out to be his great uncle. Olgun tells them that he was marooned on Roon (bit of poetry there for you) years ago and has since searched for roon stones, coming up with six bags full. He gives this treasure to Mungo along with a survival kit before passing on. Mungo becomes determined to follow in his un
Mungo Baobab and the Droids along with Auren Yomand her father, continue their pursuit for Roon stones but when General Koong decides to spray the deadly virus Ruse over Umboon (Oran and Neils Yon's village) our heroes rush back to find Oran's mother affected by the virus. Meanwhile on board General Koong's vessel, there a is Ruse leak and though Admiral Screed and his stormtroopers have protection, Koong finds himself contaminated too and demands Gaff capture Neils Yon - the only being who may be able to cure him. Gaff and his henchman successfully capture Neils Yon and take Oran as incentive that Mungo Baobab wont do anything rash. Mungo and the droids set off to Tontoon to rescue their friends where R2-D2 runs into a molecular disruptor which causes him to momentarily shrink and Threepio learns the whereabouts of the Roon stones. Can our heroes rescue Oran and Neils Yon and can a cure be found to save their village?
When Mungo Baobab discovers a valuable fuel source on the distant planet of Biitu, the Empire dispatches a gigantic evil Droid called The Great Heep to capture Mungo and take control of the planet. Arriving on Biitu to meet their new master, R2-D2 and C-3PO are shocked to find that The Great Heep has turned the planet into a wasteland and has handed Mungo over to the agents of the EMPIRE. With the aid of a small boy named Fidge and his pet, Chubb, the Droids devise a daring scheme to free Mungo, defeat the forces of the Empire and liberate Biitu from The Great Heep - forever.
With Threepio captured by the Great Heap, Artoo in the Great Heap's harem tower and Mungo Baobab in detention, things look dim for the droids, in their attempt to free the planet of Biitu from the Great Heap and the Empire.