Cybertron, 2012, and the Autobots and Decepticons continue to slide towards mutually-assured destruction. As events gather speed and the casualties mount, they realise that to avoid extinction they must confront not just an enemy from the past, but the very past itself. Allegiances are tested, myths are exposed and new faces replace old as the last surviving Cybertronians struggle to prevent the legendary Fifth Epoch. Along the way they will face ancient horrors, new adversaries and, at the heart of their faith, a shattering betrayal.