Photo Finish is one of the greatest racers in Equestria, and no race is bigger than the Running of the Leaves_{sponsored by Iron Will Industries}, with Rarity being msot excited for this. Applejack is less than thrilled, but whether she wants to or not, she's going to find herself competing as well, alongside Twilight, Big Mac and even Little Strongheart.

Complicating matters, however, Rotten Bad Apple, Applejack's criminal uncle, and the Bad Apple family, who all want revenge for the events that transpired at Appleoosa. Even if they must disrupt the Running of the Leaves, they're going to get even with the Apple family....and anyone associated with them.