Until now, Optimus Prime never thought he would come face to face with Megatron. The legendary villain was thought to be long deactivated, but on Cybertron his power and his evil are still feared. He knows that to face Megatron is to face his own mortality. Megatron on the other hand does not know who this young Autobot is, and does not care. All he knows is that the Allspark is under this fool's protection. If he will not give it up, Megatron will tear him apart to get it.