On the mechanical planet of Sabertron lives super robotic organisms known as Transformers. There, mainly consisting of convoys, the Cybertron army, and their old enemy Destron fell into conflict to gain hold of a new power to join their side. A new breed of Transformers known as the Microns. But, griefing over the battle the Microns set off to the other end of the universe.

4 million years later, on Earth, 3 young children activated a mysterious panel inside a cave. And somehow, that was the dormant Micron...

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Sequel: Transformers: SuperLink
Alternative version: Transformers: The Headmasters