Windblade helps Bumblebee repair his damaged memory chips so he can remember his mission on Earth.
The Battle for Cybertron - Part 1: As the Autobots prepare to land on Cybertron, they receive a distress call from Chromia and Perceptor, who warn them of a Decipticon trap. (S3, ep 1)
The Battle for Cybertron - Part 2: Megatron rejoices as he believes the Ark has been destroyed. Meanwhile, the Autobots have another plan. (S3, ep 2)
The Battle for Cybertron - Part 3: While the battle rages on the surface, Hot Rod faces off against an unexpected traitor deep under ground. (S3, ep 3)
The Battle for Cybertron - Part 4: With Vector sigma destroyed, the Autobots consider the battle won... But the Decepticons reveal a superior weapon. (S3, ep 4)
After their victory over the Decepticons, Bumblebee finds himself hunted by a mysterious figure from his past. (S3, ep 5)
Hot Rod and Lugnut accidentally free the wrong bot from Quintesson control. (S3, ep 6)
A frustrated Hot Rod attempts to free more of his comrades, while Perceptor makes an epic discovery. (S3, ep 7)
Hot Rod discovers the terrible secret behind the Quintesson menace. (S3, ep 8)
Hot Rod and Soundwave clash over leadership of the Cybertronian resistance. (S3, ep 10)
Hot Rod and Soundwave team up against the Quintesson Scientist. (S3, ep 11)
The Cybertronian resistance makes an unexpected discovery about MacCadam's. (S3, ep 12)
In a last-ditch effort, the Autobots and Decepticons work together to try and save their universe. (S3, ep 13)
The End of the Universe - Part 1: Starscream's fate is revealed as a judge of the Quintessons and the interrogation of the Cybertronians begins. (S3, ep 14)
The End of the Universe - Part 2: Windblade battles her way into Iaconus, while the rest of the Cybertronians stall Starscream from making a judgement. (S3, ep 15)
The End of the Universe - Part 3: Windblade wakes Iaconus but discover that the Quintessons have summoned their own titan. (S3, ep 16)
The End of the Universe - Part 4: Iaconus falls and all looks lost... But Megatron returns from the Multiverse with a new plan to take down Starscream. (S3, ep 17)
In an attempt to find his missing friend, Bumblebee goes on a spy mission into Decepticon territory. (S3, ep 18)
In their search for Windblade, Bumblebee and Chromia discover that the legendary Crystal City holds many secrets. (S3, ep 19)
A forgotten bot returns to Cybertron, looking for revenge. (S3, ep 20)
Bumblebee must travel to Cybertron's forbidden moon to help Windblade. (S3, ep 21)
In search of Windblade, Grimlock journeys with Bumblebee to prehistoric Cybertron. (S3, ep 22)
A rescue mission to save Jetfire reveals a secret Decepticon operation. (S3, ep 23)
Chromia and Bumblebee venture into Cybertron's gaseous Argon Sea in search of Windblade. (S3, ep 24)
Optimus Prime leads a strike team of Autobots on a mission deep into Decepticon territory to destroy a dangerous artefact. (S3, ep 25)
The Autobots and Decepticons confront The Other One, a powerful being from another universe. (S3, ep 26)