12 CHAPTER DIGITAL EXCLUSIVE SERIES! In the early days of the war on CYBERTRON, OPTIMUS PRIME puts everything on the line to unify the planet-but not everyone agrees that this new Prime should be in charge... Meanwhile, the fallen DECEPTICON leader, MEGATRON, begins a journey that will change everything. Plus--what is the terrible secret of the DINOBOTS? All this and more in the first chapter of the digital event of the year!