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...

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...

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

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.

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.

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 and Red Alert are sent to seek it out.

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?

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.

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.

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 Omega Lock? And what does a side-changing Transformer named Sideways have planned?

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.

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 visit to Earth.

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...

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.

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.

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.

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.

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 world. The Autobots who were not able to return to their original dimension because of the collapse of the space bridge attempt to artificially create a space bridge of their own but only fail. Vector Prime then decides that he must act to save the universe and destroy the black hole.

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 Hot Shot try to remain hidden on the Race Planet while Megatron reveals himself to Override.

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

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.

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.

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

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

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