It is the year 4015. Earth has become Mobius. Sonic and his friends are visited by Optimus Prime of Cybertron, the youngest bot to take up the mantle as the leader of the Autonomous Robotic Organisms of Cybertron, the Autobots. Opening the floodgates for Eggman to study the Transformers, Optimus and his Autobots work with Sonic to stop Eggman’s schemes!