Shard, Sonic, Metallix and Tails move to live in Knothole - a village where a bunch of Freedom Fighters are fighting against Robotnik, now known as Doctor Eggman. However, the scientist has much more planned for the blue speedster... How will the rest of the team react? And how will they defeat Eggman again before it's too late?

Seven years after the events in the movie, Knuckles recovers Metal's chip from his melted-down remains, and Sonic states that he wants to bring him back to life. Using a new power gem, Tails rebuilds Metal into a newer body and changes his name to 'Shard'. However, Robotnik has plans for a new and improved Metal Sonic... Will Shard defeat the newer model? Or will he fail?