Sometimes losing can be a good thing, that is... if the penalty is something that changes the way you view people, specifically certain parts of them...
Rainbow Dash attempts to get back home as fast as she can after realizing that she unknowingly flashed a group of people she and the Rainboom's were performing for.
Upon waking up one morning, the Mane Six are shocked when they discover that they are missing an important part of their bodies, a part connected to their rumps...
A new affliction has struck Ponyville and spread all over Equestria... one that doesn't harm any ponies but instead causes them to dance and wiggle a certain body part; their rumps.
Sunset Shimmer finally returns home to Equestria to right her old wrongs, unfortunately the sins of the Human World follow her back and put everypony in Equestria in danger.
A year after the battle of the bands, graduation nears, a familiar face returns, a pure heart is corrupted, enemies become allies and the fate of all reality hangs in the balance.