Applejack's cousin, Braeburn, has moved to Ponyville after the idea that; He didn't want to be a country pony, no more. He wanted to become a well-mannered, polite gentlecolt, but someone gets in his way.
For centuries, the three Princesses have protected their land for devious forces known as "The Dynasty of Misery". A force that consist of three chaotic ponies that desire to rule Equestria, dividing all the ponies by ability.