Rainbow Dash's birthday is coming up, and the gang is tired of Rainbow Dash always getting away with pranking them. So Twilight, Rarity, Applejack, and Pinkie Pie team up to give Rainbow Dash the prank of a lifetime. As Dash turns to doubting her friends when they mysteriously exclude her from conversations, it is of no choice but for her to turn on them… and just so possibly give them a few pranks as well…