Japan / SEASON

Season 1

52 listed episodes · First aired January 8, 2005

EPISODE GUIDE

Episodes

Full guide ↗
E1Fallen

When Cybertron is threatened by a colossal black hole, Optimus Prime and the Autobots give the order to evacuate the planet. However, a mysterious stranger holds one last hope...

E2Inferno

In the final episode of Cybertron peace has settled on the Earth, but new information will reveal why Landmine arrived on Earth and not elsewhere and why Scattershot had such unusual reading when they arrived.

E3Haven

With the help of their human friends, the Autobots construct a new HQ on Earth, but will Megatron discover their secret base before it's finished...

E4Hidden

The Autobots attempt to blend in by assuming alternate transformation modes suitible for Earth. Meanwhile, the Decepticons enagage human military forces, and the Autobots are forced to intervene.

E5Landmine

Landmine tries to adjust to life on Earth while recovering from the injury Starscream's null cannons inflicted on him. Meanwhile, the Autobots discover what planet the second cyber planet key is hidden on, and Hot Shot …

E6Space

Bud is taken into space so he can see what the Earth is really like, but trouble occurs when he and Scattershot must be saved while the others are fighting against Thundercracker and Starscream. Meanwhile Red Alert and …

E7Rush

Hotshot and Megatron race against Override in an attempt to win the first cyber planet key. Will either win when Crumplezone and Ransack are interferring?

E8Speed

Starscream plots how he can defend his title as Megatron's right-hand man while Thundercracker lures the Autobots into a trap. Meanwhile, Hot Shot tries another attempt to beat Override.

E9Collapse

Megatron searches for the Cyber Planet Key with extreme force, while the Autobots try to stop the massive earthquakes that are threatening the city.

E10Time

Red Alert becomes concerned at the desperate measures Hot Shot is taking to beat Override, while Vector Prime and the kids travel to the Sahara in search of the Omega Lock.

E11Search

The Autobots join Vector Prime to search for the Omega Lock, while Overhaul is left stranded by a surprise attack by Megatron and Starscream.

E12Deep

Overhaul and Megatron try to convince inhabitants of the Jungle Planet of their 'good' intentions, while the Autobots investigate the appearance of a new Atlantean symbol.

E13Ship

After the "Atlantis" ship disappeared, Optimus Prime and Megatron head to the moon where it's hiding while Vector Prime and the kids locate the Omega Lock. Will the Autobots prevent the Decepticons from getting the Omeg…

E14Hero

Optimus discovers that Hot Shot has disobeyed his orders while Red Alert has covered for him. However, he is forced to put his trust into Hot Shot to win the Cyber Key from Override.

E15Race

Hot Shot and the Autobots battle Ransack and Crumplezone in the first round, while Starscream continues to build his forces when he recruits Mudflap and Lori and Bud uncover information on the Ancients' prehistoric visi…

E16Detour

As the race for the Speed Planet Cup continues, Hot Shot teaches Override the Autobots' code of honour, while Overhaul faces Scourge on the Jungle Planet.

E17Savage

Koby helps Hot Shot to train for the gruelling next leg of the Speed Planet Cup, while Optimus Prime and Vector Prime answer a distress call from the Jungle Planet.

E18Sand

Hot Shot takes a dangerous gamble in the next round of the Speed Planet Cup, while Sideways tries to pit the Autobots against the Decepticons against each other...

E19Champion

After the terrible injuries sustained in the last race, Hot Shot cannot finish the final race on his own... Leaving Koby to enter the tournament as Hot Shot's driver.

E20Ice

Bud, Lori and Koby encounter government scientist Professor Suzuki while investigating strange phenomena at the North Pole, while Starscream plans a new attack.

E21Honor

Leobreaker disobeys Optimus' direct orders and attacks Scourge. Although Scourge now respects Leobreaker, the incident has caused a rift between him and Optimus...

E22Primal

Scourge and Optimus Prime battle each other for the Jungle Planet Cyber Key with Override from Speed Planet and Lori from earth being the guest viewers.

E23Trust

In an attempt to confuse the Decepticons, Optimus makes duplicate cyber keys for each Autobot. Meanwhile Dr. Suzuki makes an amazing discovery at the North Pole.

E24Trap

The secret history of Earth and Cybertron is revealed with the awakening of monster-hunting Autobot Smokescreen. Meanwhile the Autobots are drawn into a cavern filled with ancient Decepticons...

E25Invasion

Starscream unleashes the ancient Decepticons in an attempt to find Earth's Cyber Planet Key, Optimus leads the Autobots in battle...

E26Retreat

The Minicons rescue the kids from the military, while Sideways learns the location of the Autobots' Earth base and leads every Decepticon to Coby's home town...

E27Revelation

Scourge frees Megatron from Starscream's trap and heads toward Earth. The Autobots must deal with Megatron and locating Starscream's location at the same time.

E28Critical

Just as all hope is lost, the light of Primus shines down on the fallen Autobot warriors (Scattershot, Red Alert, and Hot Shot) and resurrects them.

E29Assault

A three-way battle unfolds between the Decepticons, the Autobots, and Starscream's forces. Then, an Autobot warrior named Wing Saber appears.

E30Starscream

With the Autobots closing in, Starscream unleashes the Omega Lock's power and grows to a tremendous size. Meanwhile, the Cybertron Defense Team is sent to check on Cybertron, but they find it infested with hundreds of s…

E31United

Override, EVAC, and Leobreaker are sent to help the Cybertron Defense team on Cybertron. Megatron's Decepticons follow as well as Thunderblast who joins Megatron. Optimus and Wing Saber combine and overpower Starscream.

E32Cybertron

The Autobots are finally able to destroy Megatron. They then try to revive Cybertron using the Omega Lock, but it triggers a reaction that seemingly begins to tear apart the planet!

E33Balance

The true form of planet Cybertron is revealed as the planet sized transformer, Primus. Jolt is used as the device to connect and relay the messages of Primus, who begins to speak of things that have long since passed.

E34Darkness

The Autobots search for Jolt and the kids who have been kidnapped by Sideways and Starscream, but Megatron has discovered new information regarding Unicron's dark power that could alter the effects of the war.

E35Memory

The kids are forced to use trickery to keep Sidewways and Starscream from deleting Jolt's memory, but the Autobots are getting closer with every minute.

E36Escape

Jolt and the kids manage to get off a distress call, but Megatron refuses to let Optimus out of battle forcing Vector Prime to lead the rescue team with one big question: will they arrive on time?

E37Family

In order to rescue his brother, Coby decides to go to Giant Planet. But before he leaves, he tries to tell his parents about the Transformers.

E38Titans

Primus tries to use his spark energy to stop the black hole but Starscream interferes by throwing himself into Primus's spark energy, this causes him to grow to planet size. He then decides to take on Primus.

E39Warp

The Autobots travel to the Giant Planet on the old Atlantian ship Ogygia, but in the space bridge they must face off with the very mind of Atlantis itself.

E40Giant

The Autobots must convience giant Transformers who are only interested in building new buildings to assist them in their search for the Cyber Planet Key.

E41Fury

The Autobots begin the search for the missing Cyber Planet Key, but there about to have bigger problems on hand as Megatron is resurrected into the mighty Galvatron.

E42City

Optimus and company rescue Bud and the Minicons, but Ransack and Crumplezone will do everything possible to prevent them from finding the Cyber Planet Key.

E43Ambush

The Autobots divide into teams and journeys to the depths of Giant Planet. However, they face a difficult battle against an attack from a strange underground structure and Decepticon. Lori's party appears and runs into …

E44Challenge

The black hole expands even further and the crisis has approached Jungle Planet. Leobreaker and Snarl wager the leader's throne and challenge Scourge. Meanwhile Lori discovers an image that depicts the past when Giant P…

E45Scourge

Although Scourge is the winner of the fight, Scourge's emotion causes him to hesitate. Among such, he encounters by chance Bud, who has formed the Mini-Con Recon Team. Meanwhile, the Cybertron Defense Team shifts into a…

E46Optimus

The Autobots and Decepticons finally reach the lowest depths of Giant Planet. Coby and Landmine head to the spaceship Lemuria where the Planet Key is located. Meanwhile Galvatron arrives and confronts Optimus, who is do…

E47Showdown

Starscream and Galvatron battle for possession of the Omega Lock and the four Planet Keys. Though the Autobots try to intervene, Soundwave and Sideways get in their way and hope to see the battle through to the end.

E48Guardian

Wing Saber hurries to the space bridge in the sky. However, he was not there in time and the space bridge begins to fall apart due to the battle that had just occurred. Lori grieves that she cannot return to her home wo…

E49Homecoming

Galvatron uses his might to pull Earth, the Speed Planet, and the Jungle Planet through space bridges forcing all Transformers to unite and fight against him.

E50End

Optimus approaches Galvatron to take the Omega Lock and Planet Keys. However, Galvatron is drawing out the power of the Planet Keys, and Thundercracker, Thunderblast, Ransack, and Crumplezone grow to giant size. In the …

E51Unfinished

Galvatron who is worn out and without power wanders through the universe. At that time, something shining catches his eye. The voice of Starscream is heard and asks "Have You Given Up? Meanwhile Jungle Planet has gotten…

E52Beginning

Representatives of each planet have successively gathered together on Cybertron. The first Space Peace Conference opens with Optimus Prime. Optimus Prime makes a proposal for the construction plan of a new space bridge,…