Crackle Pop leaves the train upon arriving in Ponyville and gets awaited by his big sister Derpy on the platform. When she is surprised to see him instead of Chirpy, Crackle Pop explains to Derpy what happened and together, they set their sight on winning the Applewood Derby for Chirpy.
But will they succeed? How will a certain accident affect their plans and what will happen after it? Is there any hope at all to dry Chirpy's tears?