Optimus dug the spikes on his boots into the walls of Sumdac Tower while using his axe to help him remain stable as he climbed up. Starscream giddily and madly blasted away at the city and didn't notice the Autobot coming ever closer.
"Now nothing will stop me from crushing the Autobots and taking control of the Decepticons! I will rein SUPREME!" he cackled madly. His laughing, however, was interrupted by an axe thrown at his wing and was now dug in. He looked behind himself to see Optimus Prime leaping at him. He grappled Starscream by the waist and delivered several punches and kicks as Starscream tried to fight him off.
"Stop! You're messing up my flight!" Starscream barked. They fell downwards onto a roof top with Optimus using Starscream to absorb the impact. He snatched away the AllSpark orb and used his bolo cable grappler to swing from a building. Starscream had recovered and tackled him from behind. They crashed through a window and out the other side.
Optimus lost his grip and almost fell when he managed to grab onto Starscream's leg. He crawled his way up Starscream's back and pulled his axe out of the wing. When Starscream tried to look at him, Optimus blasted his face with foam. Starscream and Optimus spun out of control and crashed into the zeppelin. On its roof, they fought for the basketball-sized orb.
"Let go Autobot!" Starscream demanded.
"Never! The AllSpark is life!" Optimus proclaimed bravely.
"Then you will perish!" Starscream pointed his blaster at Optimus and tried to channel the AllSpark energy to the blaster. Optimus also channeled some of the energy to his hand, and when Starscream fired, he blocked it with a blast that had erupted from his palm. The colliding powers created a force that blew off parts of Starscream's armor and shredded Optimus's jacket.
Then time seemed to stop. The blast had ripped a hole in space and they now floated in some place of swirling blue clouds. Starscream's grip finally became too weak and he was blown away into the clouds of blue.
Suddenly Optimus felt like water washed over him and he was back in Detroit, falling down from a fatal height.
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Optimus tried to use his grappler to save himself but the cable snapped. He crashed into the ground. Pain shot all over his body. It was too intense. There was no way he could move. The others arrived.
"Optimus! Optimus are you okay?!" the others cried.
"Optimus?" Sari gasped. She was kneeling next to him, holding his hand assuringly.
"So this," Optimus closed his eyes, "is what it feels like... to be a hero..." He exhaled and stopped breathing. Sari felt his grip relax.
Optimus Prime was dead...