In an experiment gone awry, a pony is brought to Equestria. A perfectly ordinary pony. One so ordinary, it runs the risk of destroying Equestria's very lifeblood.
Hello? Is... is this thing on? The red light means it's on, right? Or do I... I have to push a button, don't I? Well, which one? There's like ten! The black one? They're all black!