Once again voiced by Peter Cullen, War for Cybertron Optimus Prime looked familiar yet alien, as he lacked his usual Earth alternate mode. Instead, he transformed into a Cybertronian approximation ...

On Cybertron, the Autobots, led by Optimus Prime, are on the verge of losing the Great Cybertronian War to their enemies, the Decepticons, had begin making preparations to leave the planet.