Sick with pony fever, Apple Bloom misses out on a field trip to the human world. However, a talk with Ponyville's spastic human enthusiast gets the impatient little filly's curiosity piqued to her breaking point—her breaking the rules point, actually.
She visits Earth anyway, and, well, things go downhill so rapidly that the rate of decline is best described as mathematically imaginary. Humanity goes extinct, but hey, at least it's an adorable extinction, right?
Apple Bloom says she's sorry. D'aww, how can you get mad at such a sweet, fuzzy little pony wearing a big red bow? She's so cute!