The darkness as fallen on Equestria, and a new ruler is now on charge. The future of everyone is on the backs of the resistance, leaded by the last 5 of the Elements of Harmony, for fight... an old friend.

The world have face his end. Now to live is only a machine.

Bone Saw, a tall, white unicorn with a cybernetic leg, will go on an adventure for take the last remnant of the Goddess . Her heart .

Not all changelings are true monsters. And the main six will learn this lession.