Jason Tyrell, an aspiring professional duelist, is a young man in school, who plays with old bits of machinery in his spare time. When he starts having repeating nightmares regarding the destruction of our world at the hands of terrifying forces, he starts to suspect that something is not quite as it seems. It isn't long before he finds out he is right, and him and his friends are pulled into a battle for the very Earth, with the power of the ancient gods at their fingertips.

Meanwhile, in Equestria, Twilight Sparkle is extremely agitated. After some routine research into divination under the orders of Celestia, she forsees the destruction of Equestria at the hands of otherworldly forces, and a game of dark and terrible power. How will she be able to stop the end of the world, and how do these "shadow games" relate to it?

These two worlds will be linked during a seemingly innocent duel between Jason, and his rival, Chris, and the lives of the inhabitants of the two planets will never be the same again.