Putting their differences aside from competing against one another in an Iron Pony competition, Rainbow Dash and Apple Jack have discovered a new talent to put to the test this time around. Unfortunately for Twilight Sparkle, she is the unwilling judge for this competition and what it means to be victorious lands solely on her nose! One pony will will be crowned winner, the other will smell the stench of defeat, but both will learn a valuable lesson when it comes to flatulence.