The Autobots and Megatron set foot on the planet Cybertron for the first time in years. They looked up in the sky and saw the metal body for the first time in full. It looked almost like a large robotic head, covered in rust and with exposed mechanics from the missing armor.
"Do you think it's alive?" said Megatron.
"I am detecting a life signal coming from it," said Hound, "but I can't tell what it is."
"Should we attempt to communicate with it?" said Optimus.
"It might be our only option." said Hound.
"Attention unidentified spacecraft," Optimus yelled to the trespasser, "I am Optimus Prime, leader of the Autobots and defender of Cybertron. Identify yourself."
"A Prime still lives?" said the head as its 'lips' moved, "I thought my disciple destroyed them all."
"The Original Seven may have perished, but the Dynasty of Primes never ends. I repeat, identify yourself by name, planet of origin, and purpose of presence."
"My name is one that instills fear into those who hear it. My home is one that has been lost for ages. My mission is one that cannot be stopped."
"That is not an identification." said Optimus, "Your name, planet of origin, and mission."
"I am Unicron. I come from the world before all worlds to wreak chaos and consume the universe."
"Unicron?" said Optimus, "This is impossible."
"So is the existence of a Prime, and yet you stand before me, another impossibility. Tell me, do you still consider my existence to be impossible?" Optimus was mesmerized in shock, awe and fear as Unicron gave his speech.
"Listen here, Unicron," said Megatron, "We just brought this world back from apparent doom. We will not give up our world to you, no matter the cost."
"You pathetic Cybertronians think that you can stop me? I will destroy you, your planet, and the universe, and you will not stand a chance. Only the power of Primus can stop me." Unicron fired massive energy beams at Cybertron.
"Send out the battle fleet!" said Megatron.
"No!" Optimus was too late trying to stop them, for the massive ships left their hangars and flew into Unicron. They fired missiles at him, but he just swallowed them and they came out as a fluid from the other end, for he lacked a body to convert it into energy. The ships tried to fly into his mouth and plant explosives, but he swallowed them, too.
"As you can see," said the monster, "nothing can stop me."
"Is there anything we can do to change your mind, Almighty Unicron?" said Megatron.
"Do I detect a hint of praise in your words, Megatron?" said Unicron.
"No, Unicron."
"No. There is nothing you can do to change my mind."
"Are you certain?" said Optimus.
"Yes." said Unicron, "I will not rest until Primus is no more and I can complete my mission in peace."
"And we will not rest until you are defeated, and the universe can exist in peace."
"A day that will never come, Prime of Nobility." Unicron opened his maw and began sucking Cybertron toward him.
"I see one flaw in your logic, Unicron." said Megatron, "Cybertron is too large to eat with a mouth the size of yours." Unicron thought about these words, and closed his mouth.
"You are correct, Megatron." said the giant, "However, I will return, and you will make that possible."
"What makes you think I'll help you?" said Megatron.
"I was not offering you a choice, Megatron, or should I say Galvatron?" Unicron opened his mouth and a red glow appeared, causing Megatron to convulse.
"You have now returned to your former state of requiring Galvanic Energon to survive. You do not have the capability to drain it from others since the device was destroyed. Only I am keeping you alive now, and I can stop whenever I choose. Assist me in recreating my body or you will proceed on your way to oblivion."
"I'm sorry, Brother," said Galvatron, "but I have no choice." With that, he left Cybertron and joined his new master.