It is comprised of the starships:
- Japanese name: Noah
As Galvatron was about to deliver the killing blow to Optimus Prime and his Autobots, salvation arrived in the form of massive numbers of reinforcements from the Jungle Planet, Velocitron, Earth and Gigantion. After Galvatron was driven off, Primus approved of this coming together of his children for one purpose, shining down a ray of divine light in the assembled Transformers' darkest hour. Out of the light the four ancient starships were transformed into the colossal Ark, and Primus declared with this ship, all were one.
During the battle against Galvatron and the Cyber Planet Key-powered Decepticons, the Ark did very little other than to serve as a vast battlefield. After Optimus Prime, Override, Scourge, Evac and Metroplex successfully stopped Galvatron from throwing the Omega Lock and Cyber Planet Keys into the event horizon of the Unicron Singularity, Primus' spark was finally restored. With full power at his disposal, Primus used the Ark as a supercannon, blasting the black hole into oblivion and ending the threat to the universe. With his and the Ark's purposes served, Primus transformed into a partly organic Cybertron while the ship split back up into the four original starships.