A teenage fast food employee and his two friends are inadvertently dragged into an intergalactic robot war. Unfortunately for the teenagers they get involved in the war just in time for Megatron's return.

Megatron begins his plan for dominating the universe and reveals his discovery of a Dark Energon that allows him to spread his evil energy.

Optimus and Ratchet head into space to investigate the evil stirrings pointing toward Megatron's return.

Megatron's army of living dead Autobots rise from the grave and go into battle against Optimus and Ratchet.

Optimus takes Autobots into space to guard their dead planet, Cybertron. Meanwhile, Megatron plans to use Dark Energon to wake the dead.

Starscream appoints himself the successor to Megatron and plans to awake Skyquake to lead the new assault against the Autobots.