A plague has broken out on Cybertron, and it's a zombie plague. No one has an antidote yet, and that hope is yet to disappear. Since many Decepticons and Autobots who were scientists and medics are infected of this. So the only survivors right now are Megatron, Starscream, Optimus Prime and Bumblebee. This is a worldwide apocalypse. And the shining light of hope is darkened by the days.