Cybertron City: the mysterious Terrorcons have been sent out to capture Energon, and are now attacking Cybertron City on Earth. Energon stars: The Terrorcon threat leaves Optimus no choice but to evacuate all the human residents of Earth's Cyber City. Scorponok: A new energy has arrived on the scene - the devious Scorponok. He revives Tidal Wave and convinces him to attack Desert City. Megatron's sword: When Scorponok is ordered to attack Earth, the Autobots are soon overcome both by the Terrorcons and the power of Scorponok's Star Saber.