The Changelings have return along with Queen Chrysalis to attack and want revenge on the Ponyville and on Canterlot. However, a young Alicorn named Mindy found out there plan before they brought on the attack and began to gather her friends to stop them. With the aid of Twilight Sparkle and her knowledge of the Changelings will lead and teach these six mares what to do and how to defend the town against this angry invading army and a very angry Queen.