The year is 21XX.  The war between Humans and Reploids has finally come to an end.  Sigma has been completely destroyed, and his few remaining followers are scattered.  The peace that X and Zero fought so hard for has finally become reality. But nothing lasts forever, and the peace that the Maverick Hunters struggled for is about to be shattered. A Darkness is coming, a Darkness that will put X and Zero's friendship to the ultimate test.  Aided by Auroran Flash, along with a mysterious and powerful new ally, X and Zero must discover the truth about Zero's hidden past, as they make their stand against an enemy of incredible power. The future is coming......

And so our story begins.......