Celestia is gone. The Capitol remains as the leaders of Equestria. Equestria is now divided into 12 districts, and every year the Capitol takes one mare and one stallion from each district to be trained and then to be entered into the Pony Games.

Rainbow Dash is an assassin. She is part of a secret society formed by both Celestia and Luna to help protect the ponies of Equestria. Nopony knows about Rainbow's secret double life, not even her best friends. But it seems that Rainbow will have to reveal her most dangerous secret to her best friends or it will be the last thing she will ever tell them.