Huge robots with the ability to turn into vehicles, planes and other technology are fighting a gigantic battle of good versus evil in which the future of the galaxy hangs in the balance.

The evil Decepticons have taken control of the planet of Cybertron and the Autobots led by Optimus Prime are planning a heroic strike to retake their home planet. However, with both sides warring against each other, they are totally unaware of the immense and deadly threat that is approaching: Unicron - devourer of worlds! On the edge of destruction, Cybertron’s single hope of survival lies with the one Autobot who can rise up and save their existence.