The Secret Files of Teletraan II were a series of short (1–2 minute) profiles which aired in 1986, after select episodes of the third season of the original Sunbow cartoon series. They included recaps of past events, character and group profiles, and "where are they now" guides, helping to explain the 20-year time gap between seasons 2 and 3 to viewers who had not seen The Transformers: The Movie.

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Featurette about the hardcore keepers of the franchise, the fans, get a chance to show off their love for all things Transformers.

While traveling through space in the Ark, the Autobots are ambushed by their enemies, the Decepticons. The battle moves into the Ark itself, leading to a damaging crash on Earth. After millions of years of dormancy, both sides are suddenly awakened and the battle on Earth is about to begin.

After being rescued from a Decepticon attack, Spike and Sparkplug offer their assistance to the Autobots. And the Autobots are going to need it in order to stop the Decepticons from gaining the power to conquer Cybertron.

The Autobots do whatever it takes to prevent the Decepticons from using a recently constructed ship to leave Earth and head for Cybertron.

Spike is severely hurt during a battle. His mind is placed into Sparkplug's recent creation, Autobot X, until his body can be saved by an operation. But the Autobot X body was unstable to begin with and Spike soon ends up betraying his friends.

Wheeljack's new invention, the Immobilizer, is capable of rendering any Transformer hit immobile for a short time. Once the Decepticons get their hands on it, however, they modify it and begin leaving many Autobots immobile.

Proving to be a danger even to their own allies, the Dinobots are sent away to train on a recently discovered island in the hopes that they will learn how to effectively work together. The island, however, is far from ordinary as it is populated by dinosaurs. Meanwhile, the Decepticons make advances toward the island so they can acquire it's natural resources.

The Decepticons' tampering on the island creates openings to other times, allowing all sorts of things from various times to arrive in the present. The Autobots race to reverse this before it's too late and to stop the Decepticon plot. But in the end, their best hope may be the Dinobots.

Failing to cause a divide between the Decepticons and Insecticons, Mirage's mind suddenly becomes enslaved and he is used by them in a plot against the Autobots.

The Decepticons send the recently stolen Nightbird on a mission to steal an informative chip from the Autobots.

The Decepticons plans to take energy from the center of the sun using a circuit from one of their enemies, Gears. The Autobots must defeat the Decepticons and rescue their compatriot.

The latest Decepticon plot to destroy the Autobots involves the creation of a Optimus Prime duplicate. They hope this duplicate will be able to convince the other Autobots he is the genuine article and will lead them into a chasm that will destroy them.

The legendary Atlantis is proven to be real and it's residents aren't exactly peaceful.

Jazz, Bumblebee and Sparkplug are up against insurmountable odds when Megatron manages to turn the recharging Autobots evil.

The Decepticon ship that shot down the Ark has been found and Megatron manages to find a component containing great power. With this power a danger to everyone, Perceptor, Bumblebee and Brawn shrink down and journey through Megatron's body to get it away from the Decepticon leader.

The Constructicons trick Grapple and Hoist with claims of having left Megatron. They construct a tower Grapple thought up to absorb solar energy, which Optimus Prime did not want to be built for fear of The Decepticons getting their hands on it. Not surprisingly, The Constructicons betray them.

The Insecticons become extremely powerful after they consume an energy source. They enslave every Decepticon except for Megatron. The Decepticon leader and the Autobots will have to team up to return the Insecticons to normal.

Megatron seizes control of the Torq III computer, enabling him to control the flow of oil.

Megatron and a politician team up to slander the image of the Autobots.

While Megatron and Shawn Berger enjoy Decepticon Day in Central City, Spike tries to find video evidence that proves the Autobots are innocent!

Red Alert is damaged during a battle, making him rather paranoid. This causes him to join forces with Starscream, who wants to get a hold of the Negavator.

The Decepticons plan to take New York and turn it into their new home base, disassembling Optimus Prime in the process. The rest of the Autobots must save Optimus and New York City without their leader.

Both Autobots and Decepticons are facing tough times as they are in need of the element called Cybertonium. The Decepticons quickly get as much as they need, but the only way for the Autobots to get it is to rely on The Dinobots, who have been unaffected by all this. However, the Dinobots have been getting annoyed with The Autobots lately and leave them.

Both Autobots and Decepticons are facing tough times as they are in need of the element called Cybertonium. The Decepticons quickly get as much as they need, but the only way for the Autobots to get it is to rely on the Dinobots, who have been unaffected by all this. However, the Dinobots have been getting annoyed with the Autobots lately and leave them.

From the moon, Megatron manages to interfere with the radio transmissions on Earth. Blaster and Cosmos go to put an end to his plot as the other Autobots work to help those affected by the loss of radio transmissions.

Spike, Hoist and Warpath find their battle with a group of Decepticons interrupted when they all get sent back in time to the middle ages.

Astrotrain tricks a race living on one of Saturn's moons, Titan, into thinking he is a god and gets them to do his bidding, which includes getting a hold of a newly discovered power.

Megatron plans to drill his way to Earth's core in hopes of getting large amounts of energy. The Autobots try to stop him and initiate their new plan to take control over Devastator. When both sides battle for controlling Devastator, though, it causes disaster.

After someone steals him, Tracks is briefly unable to transform or talk. This isn't so bad, however, as it leads to the discovery that Decepticons are planning to turn stolen cars into weapons.

Most of the Autobots lose their ability transform to robot mode after the Decepticons use a device on them. A handful of Autobots still capable of transforming are their only hope.

A lagoon within a forest is discovered and found to contain a substance called electrum, which can make anyone invincible. The bad news is that the Decepticons manage to use it on themselves first.

On the way to Earth with a type of insecticide to use against the Insecticons, Spike, Bumblebee and Cosmos encounter Morphobots. They get away just fine, but they inadvertently take Morphobots along for the ride.

Omega Supreme reveals his past to Optimus Prime, which involves a city's destruction, Megatron and Constructicons.

The space bridge accidentally sends several Autobots and Decepticons to a strange world in which they are no bigger than toys.

With the others rendered powerless, Smokescreen has to enter the gambling world to get the Energon needed to revive them.

Elita-1, leader of a group of female Autobots causing trouble for the Decepticons, is captured and used as bait to lure Optimus Prime into a deadly trap. However, Elita-1's strange time manipulation technique saves him, but leaves her close to death. Her only chance for survival lies in Alpha Trion.

Innocent people fall under Megatron's control through music being played at a club.

A hunter sets his sights on Optimus Prime and uses several captured Autobots to force him into a confrontation.

The Decepticons are trying to learn the secret surrounding a man's invention and go after his teenage daughter. Powerglide intervenes to rescue her, but this causes her to fall in love with him.

Astrotrain and Blitzwing leave The Decepticons to do things their way, which includes capturing Megatron and Starscream and seizing control of a stadium.

Seaspray falls in love, but the object of his affection is part of a rebel movement on another world.

Hoist gets a big break into show business after rescuing stuntmen. Sunstreaker, Powerglide, Warpath and Tracks are along for the ride as well. On the road to a movie career, however, they learn Dirge has stolen a device from Wheeljack's lab.

The Decepticons acquire the Key that will give them access to Vector Sigma. After using Vector Sigma, they find the Key is also capable of making organics turn into machines. Megatron prepares to use it against Earth and The Autobots will need new allies in this battle, but their creation will come at a high price.

The Decepticons acquire the Key that will give them access to Vector Sigma. After using Vector Sigma, they find the Key is also capable of making organics turn into machines. Megatron prepares to use it against Earth and The Autobots will need new allies in this battle, but their creation will come at a high price.

The Decepticons work with a smuggler to take over a Mideast palace and begin acquiring plane parts for the construction of a air fortress. The Aerialbots head to the scene, but Slingshot and Sky Dive get into trouble. But a young man known as Hassan comes to their aid to help save the day.

The Autobots capture the Stunticons during one of their thefts. With the Stunticons now imprisoned, Wheeljack presents a way to disguise Autobots as them. Going undercover, Optimus Prime, Jazz, Mirage, Sideswipe and Windcharger infiltrate the Decepticons and learn the Stunticons were trying to steal a part for a laser. However, the plan hits a snag after the real Stunticons escape.

Some Autobots take part in a charity race in Europe, but it's all a Decepticon ploy to obtain metal from Augie Canay's car in order to house the Pearl of Bahoudin. With their teammates damaged by the Stunticons, it will be up to Bumblebee, Bluestreak and Tracks to stop the Decepticon plot.

Some Aerialbots start to have doubts about their cause, some have started to admire Megatron, and are thinking of switching sides. They get pulled into a time warp, and end up on Cybertron, before the current war began. They'll discover more about Megatron, and the origin of one of their own.

Megatron causes his fellow Decepticons to be infected with the deadly Cosmic Rust. Perceptor is captured to find a cure and he does, learning that element X will do the job. The Decepticons are cured, but then they use Perceptor to spread the Cosmic Rust to the Autobots and element X is in short supply.

A creature made out of energy, Kremzeek, gets made and causes trouble for the Autobots, Decepticons and Japan.

Failing to topple Megatron, an exiled Starscream plans his revenge. He uses World War II era machines and five personality components to create the Combaticons, which prove very powerful in their Bruticus form.

Seeking revenge against Autobot and Decepticon alike, the Combaticons hijack the Space Bridge and use it to alter Earth's orbit, putting it on a collision course with the Sun. With the only means to get off-world damaged in battle, Optimus Prime and Megatron must race against time to stop the Combaticons before the Earth is destroyed.

During a battle, the Protectobots finish off the Combaticons, with the exception of Swindle. Megatron orders Swindle to reconstruct his destroyed comrades or else a bomb in his head will go off, destroying him. As Swindle works to complete this task in time, three students get a hold of Brawl's personality component and use it for their science project, B.O.T., with disastrous results.

Beginning with a recap of the coming of the Transformers to Earth and the story of Devastator, the OVA then gets its original story underway, as the Autobots are shown to be in the midst of constructing the powerful "Scramble City," overseen by their newest arrival, Ultra Magnus. When the Decepticons learn of this, their combiner robots are deployed to attack, and a battle between them and their Autobot counterparts ensues, focusing on their "Scramble Power" - the interchangeability of the individual limbs - to the extent that at one point, Breakdown of the Stunticons connects to Superion to damage him. At the OVA's conclusion, Scramble City is activated and assumes its robot mode of Metroplex to rout the Decepticons. However, from the ocean depths, the Decepticons' own city, Trypticon, rises.

While everyone continues to rejoice in their victory, unknown assailants capture Ultra Magnus, Kup and Spike. After being told by a alien, a group of Autobots suspect the Decepticons are the culprits. But when they arrive at Charr, they find the Decepticons in no shape to pull off a kidnapping, meaning another is responsible.

The Autobots make it out of Charr, but Rodimus is down and looks out. In reality, he has made a trip to the Matrix and learns the Quintessons are behind the kidnapping. After Rodimus is revived, a rescue mission is soon underway. Also, Scourge and Cyclonus finally track down a battle hungry Galvatron.

The destruction of Quintessa causes the Autobots to arrive at Goo and poor Springer loses some parts. Blurr and Wheelie are stuck in a hostile place and are in need of some help. Meanwhile, the Quintessons agree to give vital energy to the Decepticons so long as the Autobots are destroyed.

Galvatron learns what has been going on recently and meets up with the Quintessons. Rodimus again looks for answers, discovering the bitter history between Quintessons and Transformers. The Quintessons created the Transformers, but their creations rebelled against them. And the Quintessons are eager to exact revenge.

The Constructions use the newly created Trypticon to battle Metroplex, who is still unable to transform, on Earth. Sky Lynx tries to get the needed cog for Metroplex, which is with Blurr and Wheelie, but gets into a fight of his own. The Autobots and Decepticons continue fighting on Cybertron, until the Quintessons manage to immobilize them, leaving only Spike to save the day.

The Quintessons use Wreck-Gar, Cyclonus, Ultra Magnus and Marissa as research subjects, watching how they interact. Unfortunately for all of them, the ship they are on is heading for a black hole and this unusual group will have to work together to survive.

An alien is discovered to have a powerful weapon that fires crystals, which are taken from a creature Kup knows of, Chaos. Galvatron plans to construct his own powerful weapon on Chaos' home and several Autobots race to prevent him from using it on Cybertron.

On the run from Galvatron, Spike, Daniel and several Autobots enter a mausoleum and find a surprisingly not dead Optimus Prime. This would be cause for great excitement among Autobots. Unfortunately, however, Optimus is really under Quintesson control and is being used in a plan against his friends.

Octane is on the run from The Decepticons. He is forced to hide in a crypt, where the ghost of Starscream lies in wait and then takes over Cyclonus.

Octane locates the defeated Trypticon and brings him to Carbombya. There, they follow orders from Fakhaddi in order to get energon. They begin stealing landmarks around the world for him.

The Quintessons plan to use a portal through time to prevent the Transformers' revolt against them. Several Autobots wind up getting sent back to the fight and a robot with an important future arrives in the present. And the Quintesson time portal begins to have disastrous effects on the universe.

Wheelie and Daniel want to have a party for Ultra Magnus after a recent good deed of his. However, Ultra Magnus' birthday is unknown, even to him. Wheelie and Daniel try to find out the answer from Autobot records. Unfortunately for them, Cyclonus decides to intervene.

Daniel leaves a banquet being hosted by his parents. He and Grimlock end up discovering a Quintesson chamber and get stuck in a magical world.

The Autobots and Decepticons find that the voices of three aliens (Allegra, Zebop Scandana and Basso Profundo) can make a powerful weapon.

The Decepticons attack a planet home to several Autobots and easily win as these Autobots prefer peace to fighting. Once the Autobots arrive, they try to persuade their peaceful comrades that only battling the Decepticons will solve their problems.

Galvatron goes into therapy, but it does not exactly agree with him. Every one of the doctors' attempts at treating him fail before they consider using one last option. Cyclonus tries to stop them, however, after learning it would make the Decepticon leader an invalid.

Starscream, in Scourge's body, attempts to complete three assignments for the damaged Unicron in exchange for getting a new body.

The Quintessons trick the Decepticons into releasing the dangerous Trans-Organics. One of them, the Dweller, begins taking control over Autobots and Decepticons alike.

Daniel's nightmare troubles get a lot worse when the Quintessons make them real. Autobots and Predacons are forced to join forces in order to fight these nightmares.

Metroplex's transformation cog is taken by Swindle and First Aid blames himself for not stopping him. Meanwhile, Galvatron threatens to use a powerful weapon.

Two planets are locked in a destructive war and the Autobots attempt to bring about peace. Things do not go so well, however, until a Quintesson Journal is found and provides evidence of Quintesson involvement in the war.

The Junkions fall victim to subliminal messages from the Quintessons, who are trying to get a journal off the Planet of Junk. This also causes the Junkions to attack Sky Lynx and Astrotrain, which brings the Autobots and Decepticons into the situation. Unfortunately, a screw up makes the Junkions send out the subliminal messages on their own, bringing about mass confusion and destruction.

After the Autobots interfere with one of his plans, Victor Drath gets help from Ol' Snake (none other than the notorious Cobra Commander) to create artificial human bodies. Rodimus, Springer, Ultra Magnus and Arcee get caught and placed in the artificial bodies. Seemingly human, they will have to find a way to reverse what was done to them and stop Drath from using their original bodies against Autobot City.

Grimlock becomes a genius after trying to stop anti-electrons (released by Scukzoid and Slizardo) from causing disruptions in the new power generator. This proves very useful to the Autobots, especially when Grimlock learns Unicron is the source of the anti-electrons. The Autobots journey to Unicron to prevent more anti-electrons from being obtained, but Galvatron and his forces are also heading that way.

Marissa Fairborne and the Technobots encounter Dirk Mannis, who possesses the dangerous Recreator. Turns out the Quintessons want the Recreator for themselves and Dirk is happy to give it to them so long as he gets paid. Marissa and the Technobots get tangled into the resulting betrayals and scheming.

The evil Primacron plans to use an energy being named Tornadron to defeat the Transformers and help in his universal conquest. Meanwhile, the animal form Transformers leave during a battle between Autobots and Decepticons upon getting a strange signal. The signal was apparently sent by Primacron's own assistant, who believes this group of ""Primitives"" can defeat Primacron.

Being the leader takes it toll on Rodimus and his attempt to relax gets him into a fight, in which he loses the Matrix. The Stunticons escape with it and Rodimus reverts to Hod Rod. At first, Hod Rod is perfectly fine with no longer being in charge, but he soon understands he must get the Matrix back. It will not be easy, though, as Scourge has already seized the power of the Matrix.

A group of Autobots, Cyclonus and Quintessons become trapped within a Quadrant Lock Disc that has also kept the planet Zimojin and it's inhabitants trapped for thousands of years. To get out the Quintessons need a component belonging to Perceptor, but he has several parts taken out which are used by Katsudan to make repairs on a robot. Now in the small form, Perceptor learns the Zimojins were trapped there by the Quintessons out of fear.

While testing a new ship alloy, Jessica Morgan and Gregory Swafford (who hates Transformers) stumbled upon the ship Optimus Prime was on and saved him. Some time afterward, Jessica gets hurt in a battle between Protectobots, Technobots and Terrorcons, causing her father and Gregory to plot revenge. They use Optimus to lure the Autobots into a trap, getting them infected with Hate Spores which make them go berserk. As the infection spreads, Sky Lynx seeks out a Quintesson that could bring Optimus back to life.

Optimus Prime is back and leads a team to Charr to retrieve the ship alloy from Galvatron. Galvatron guides them to it's location, but they confront a couple dangers and must fend off infected Transformers. Optimus and SkyLynx are the only ones not infected and barely get away with the alloy. The alloy is used to safeguard Optimus from the Hate Plague for his battle against Rodimus as the Matrix is the key to the cure.

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