While Snow Cat tests his Hyper Power against the Energon Grid, Megatron decides to go after Alpha Q instead of Earth after finding a Terrorcon spy. On Earth, the Autobots celebrate the Energon Grid, but Optimus calls a conference, telling him the Autobots will have to move their battle into space to defeat Unicron and the Decepticons. Outside, Hot Shot races out on a space bridge after receiving a secret message from Rodimus. He arrives on Mars, but runs into Scorponok and his Terrorcons attempting to collect Energon. Rodimus appears, and tells Hot Shot to not fire on the Alpha Q-allied bot, who escapes. Hot Shot questions Rodimus's actions, and is shocked that Rodimus says Unicron must be revived.
たび重なる地球へのデストロン来襲に備えるため、ジョーンズ博士は、各シティにエネルゴンタワーを建造、そのパワーにより地球上に強力なバリア、エネルゴングリッドを張ることを提唱する。敵の襲撃を完全に跳ね返すことができるグリッドの発動に向けて、急ピッチの建造作業を進める中、新たなる剣、メガスパークブレードを携えたガルバトロンが、手下を従えまたもや地球に襲いかかる！
