OPTIMUS PRIME has seen MEGATRON use DARK ENERGON before, but never like this, and never with such total command of its abilities. He knows that he must put a stop to this evil before its corruption forever taints the Earth, and before its power overwhelms his small team of AUTOBOTS.
When he first became leader of the AUTOBOTS, OPTIMUS PRIME was not certain he wanted the responsibility. The war with the DECEPTICONS was going badly, and it looked like there was no end in sight. He vowed to himself and to the warriors under his command that he would never surrender, never retreat, and never stop fighting until the DECEPTICONS were defeated. Confronted with the inevitable decline of his homeworld into a long period of frozen, powerless hibernation, OPTIMUS PRIME faces a terrible choice: Stay and fight to the finish, only to fall into stasis alongside his world; or evacuate, and hope that the DECEPTICONS pursue him into space so that the planet has time to heal.
OPTIMUS PRIME, the leader of the AUTOBOTS, earned the right to be called a PRIME by virtue of his courage, intelligence and skill in battle. But the discovery of the long-missing SENTINEL PRIME means he may have to share his role as commander. The DECEPTICONS don't stand a chance with these two mighty AUTOBOTS fighting side by side!