When Sombra is discovered alive but weakened beneath the Crystal Empire, Celestia enlists Twilight and Fluttershy to help reform him. When mysterious ponies appear and begin fighting each other with Dark Magic, things begin to get more complicated.
The fabric of reality surrounding Equestria starts to come unraveled, it falls to Twilight to find a solution, but not just one Twilight; an alicorn princess, a brilliant human, a lazy genius unicorn, a stallion, and a unicorn using Dark Magic.
What is a Hero? What is a Villain? Is it motivation that matters more, or victory? Nothing is black and white, and shadows truly embody the shades of grey...
Sombra faked his death, and succeeded at reviving his Umbrum army. But what happens when he mistakes Twilight for Radiant Hope, the one mare he most loved, but who abandoned him when he discovered the truth of his destiny?
Twilight learns of Sombra's past, and finds him alive but weakened. She decides to learn how to use his Dark Magic for Good, by taking him back to Ponyville.