The Autobots consider the battle won until the Decepticons show a weapon to steal the allspark.

Hot Rod and Soundwave team up to battle a Quintesson scientist.

The Autobots and Decepticons team up in a last-ditch effort to save the universe from the Quintessons.

The Autobots and Decepticons discover the terrible secret behind the Quintesson menace.

The Autobots and Decepticons combine their forces to defend Cybertron from its impending judgement.

With Optimus missing and the Quintesson Judge having captured the other Cybertronians, Windblade and Maccadam prepare their last resort.

Cybertron bears witness to a clash of Titans.

With no way left to fight a Quintesson-controlled Croaton, the Cybertronians are saved by an unexpected arrival.

In an attempt to locate a missing Windblade, Bumblebee goes on a spying mission in Decepticon territory.

In their search for Windblade, Bumblebee and Chromia discover secrets hidden within the legendary Crystal City.

A forgotten Autobot returns to Cybertron, searching for revenge.

To help Windblade, Bumblebee finds he must travel to Cybertron's forbidden moon.

The search for Windblade continues as Grimlock joins Bumblebee on a journey to prehistoric Cybertron.

A rescue mission to save Jetfire reveals a secret Decepticon operation.

Bumblebee and Chromia's search for Windblade takes them into Cybertron's gaseous Argon Sea.

Optimus Prime leads a strike team of Autobots on a mission deep into Decepticon territory to destroy a dangerous artifact.

In the series finale, the Autobots and Decepticons face the Other One, a powerful version of Megatron from an alternate universe.