Applejack wakes up one morning to find that all the apples in Sweet Apple Acres have been destroyed overnight. Suddenly, a strange robot calling himself the Cybernetic Ghost of Hearth's Warming Past From the Future appears, admitting he was the one who destroyed all the apples, and begins telling a convoluted nonsensical story about the true story of Hearth's Warming to explain why he did what he did.
A crossover with Aqua Teen Hunger Force, from Adult Swim.