As the Energon supply runs low on the planet Cybertron, the Autobots leave to find a new energy source. Their enemies, the Decepticons, follow. After a vicious battle in space, both of their ships crash land on Earth.
The Decepticons go after the Anti-Matter Formula in order to gain ultimate power. The laboratory scientist sends the formula to a young genius named Chip. The Autobots must keep him and the formula safe.
Optimus sacrifices himself to protect the humans. To repair him, the Autobots need an extra cos-matron from Wheeljack's lab on Cybertron. Can they get it in time before the Decepitcons act on their advantage?
The Decepticons have Dr. Archeville create a hypnotic-chip, which they plant into Spike's dad, Sparkplug. With Sparkplug under their control, the Decepticons get ready to create a new space bridge to bring Cybertron to Earth.
With Cybertron inside Earth's orbit, the Earth starts to erupt into chaos. The Decepticons gather more human slaves to prepare to send their Energon cubes to Cybertron. While the Dinobots protect Earth, the Autobots head for Cybertron.
Starscream kidnaps Dr. Archeville and forces him to take him to his secret laboratory. Starscream plans to blow up the labs ultimate power source in order to destroy Earth and claim the universes ultimate power for himself.