After saving Earth from Scourge and Unicron, the Autobots and Maximals coincide with each other, vowing to protect the humans from threats occurring on Earth or from the desolate Cybertron. New Autobots (Prowl, Hound, Ironhide, Jazz, Brawn, and Ratchet) arrive and join forces. Unfortunately, Decepticons (Starscream, Soundwave, Ravage, Laserbeak, Frenzy, Rumble, Thundercracker and Skywarp) have also arrived and Starscream discovers that energy from machines and blasts can be harnessed and converted into Energon cubes.
Meanwhile, Noah Diaz is broken-hearted to say goodbye to Mirage while becoming a member of the G.I. Joe. At HQ, Noah discovers that in a secret lab underground, GI Joe scientists are examining a giant robot frozen in ice. The robot is none other than... MEGATRON! Or maybe Megatron is at Cobra HQ?
The main human characters will be Spike Witwicky, his friend Chip, his dad Sparkplug, and his love interest Carly Spencer.
