The Transformers Episode Rating Graph

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.

After capturing Daniel and Arcee and acquiring the Plasma Energy Chamber key, Scorponok and the Decepticons make their way to Cybertron. The Autobots head after them, but Spike and Cerebros stay on Nebulos and come up with a strategy to use a Hive city as a weapon against Scorponok. Meanwhile, the Decepticons and Scorponok begin to threaten Earth and it is up to the Autobots and their allies to stop them.

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.

New allies for the Autobots are built, bringing about Grimlock, Slag and Sludge. However, the Dinobots prove hazardous to the Autobots and must be locked away. But they may be the only hope for the Autobots after a battle with the Decepticons.

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.

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.

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

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

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.

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.

A battle with the Decepticons leaves Optimus Prime damaged. Several Autobots journey to Cybertron to retrieve a vital part that will help repair him, but the Decepticons take advantage of the situation and launch an attack.

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.

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.

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

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

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 Constructicons, recently created for the Decepticons, have built a device to give Megatron the powers and skills of his soldiers. All this is to give him the advantage in a challenge he issues to Optimus Prime. And if Optimus loses, he and the Autobots must leave Earth.

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.

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 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.

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.

Daniel and four Nebulans join with five Autobots to battle the Hive, but the Hive decide to do something similar with a group of Decepticons. Meanwhile, Optimus Prime goes to Vector Sigma to find out the whereabouts of the missing Autobots and encounters an old face, learning the answer and what must be done.

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.

Starscream is going to destroy the Earth and take the energy from the explosion to rule the Universe. The Autobots and Decepticons must team up to stop that disaster.

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

The Decepticons discovers an old type of Decepticons, the Insecticons. They will ally to destroy the Autobots, who will have to face them in another great battle.

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.

The Earth is returning to the ice age, becuse an evil plan of the Decepticons who have found a new partner...

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.

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.

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.

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

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.

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

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.

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

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.

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'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.

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

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.

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.

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

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.

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.

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 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.

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.

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

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.

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.

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.

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.

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 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.

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

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.