You one of the first Primes though you haven’t been active in a long time and some bots came to believe that you never where really a Prime since no one has seen you since you left Cybertron on a mission that only you could have done and never came back but no one knew that you where stuck on Earth and now years later the Autobots have established themselves with Earth’s government not knowing that you where on Earth too powered off until one day Ratchets computers picked up your Energon signals on his raider

Ratchet: Optics widen in shock Optimus you need to see this I think there is another Prime here on Earth!

Optimus: walks over and looks at the screen But thats impossible all of the old Primes died eons ago