The pendulum of good and evil has swung upon its eons long arms since before time was born. It's inexorable path has always inscribed the balance of hope and despair, swinging towards one pole and then the other with unerring certainty.
Entities outside the multiverse, ones far greater than mere gods, known only as the powers-that-be, stir from their slumber, awakened by the disturbance. Their creation is breaking. The Enemy pounds on the gates of reality. Evil's grip on the world is so tight, that it may never see the light of hope again. If the pendulum does not resume its path soon, everything that is will fall into emptiness.
In desperation, the powers-that-be reach through time and space, seizing the souls of mortal heroes, forged in a brighter age long past. For these souls, the powers forge bodies, stronger than any that have walked on this earth before.
You are those souls, these are your bodies. Your Enemy is unlike anything that has ever been seen before. Fortunately, your allies aren't either.