Transformers: The Last Ones

Chapter 2: Fall Of Cybertron

Soon, the Autobots are preparing the last transport for launch. Ironhide reports the energon reserves are aboard, and Perceptor is overseeing city shutdown, only for the news to come that the Decepticons have invaded the city. Optimus and Braedimus try to contact Grimlock, as it's his sector the Decepticons have invaded, but gets no answer. As the Primes move to head out, a Warp Cannon crashes to the ground nearby and targets the Ark. Optimus and Braedimus heads through the Iacon ruins and enters Autobot City through a side door to find the Autobots trying to get the city stable without the absent Grimlock.

After helping Ratchet stabilize a badly-injured Silverbolt, both Primes send Jazz to find where Grimlock's disappeared to. At the armoury, Warpath reports that Perceptor and others are trapped in a nerve center, so he, Braedimus, and Optimus fight their way there. After fighting off a horde of Decepticons, they unseal the detpak from the nerve center door. Sending Warpath back to the Ark, Optimus and Braedimus go in to meet with Perceptor, who's struggling to get the city working again so they can fight off the Decepticons. He sends both Primes to activate an old artillery gun using energon from the Ark, and the Primes soon puts the weapon to good use taking out Decepticons.

With news that the Warp Cannons are firing on the Ark, Optimus and Braedimus heads to the engine room, but as he moves towards the flight deck, the corridors restructure around him. Decepticons, including Starscream, have invaded the area, and Optimus and Braedimus finds many bodies, but heads for the neutron cannon. After fighting his way through more Decepticons, he brings the neutron gun online, but again the targeting is out. Optimus takes manual control and helps defend the Ark refueling station from a number of Decepticon tanks. When the cannon runs out of energon, Optimus and Braedimus heads back inside the city and is guided by a mysterious intelligence to the city's core where he pulls a lever... and the entire city transforms into Metroplex, a humungous city transformer.

Optimus, Braedimus and Metroplex head for the Iacon ruins where the Warp Cannons are located. Once they find the first Warp Cannon, Metroplex laboriously synchronizes his targeting systems with Optimus and Braedimus, and together, they all take out the first cannon. Moving on, the Primes help the survivors of a crashed Autobot ship and finds Warpath in a huge plaza. With the second Warp Cannon shelling them, they head into a building and manage to get close enough to the cannon for Optimus and Braedimus to mark it for destruction by Metroplex.

That done, Optimus and Braedimus head down more corridors and are confronted by three Leapers, which Metroplex handily takes out by putting a fist through the wall. After fighting his way across a huge bridge, the Primes get close enough to the last Warp Cannon to mark it, only for it to take out Metroplex first. With no other choice, both Primes make their way to the base of the cannon and forces open a door, only to be blasted by Starscream, bashed by Brawl and Onslaught, and dragged in front of Megatron. While Starscream gloats at his victory over the Primes, Megatron simply blasts his Air Commander before killing an Autobot in front of the bound Primes.

Luckily, it turns out Metroplex is back online, and he rips the roof off Megatron's throne room before smashing Megatron into the ground repeatedly with his fist. Starscream pronounces Megatron dead, himself leader and orders the Decepticons back to base. The day is won, but unfortunately all the Autobots' energon is exhausted and they need to find more. The two Primes believe Grimlock may hold the key, and says Jazz and Cliffjumper are tracking down their missing comrade.

~*~*~

Sideswipe drops Jazz and Cliffjumper off over the Sea of Rust in the middle of a rust storm to look for Grimlock. In a ruined base, they find a crashed ship which they recognize as one that was stolen by Grimlock from the base. They soon spot Decepticons moving around and sneak inside the base. As they stealthily make their way through, they overhear some Decepticons discussing Shockwave and his "pets".