There's a mystery ailment effecting all of Ponyville and many beyond. Nopony knows where it came from, how to stop it, or even what it is; everypony's symptoms are unique.
As if that wasn't enough, one night, the very ground beneath their hooves decides it'd like a field day. It's not everyday that the road falls out of the sky. Perhaps fortunately, the airborne roadway is a little easier to investigate; there's a rather convenient tunnel in the bottom of the crater it left behind.

Tags may be updated as the story progresses.
Yes, this is another BiE (Bolo in Equestria) story. No, this is not a sequel for or rewrite of any other story.
Cancelled for lack of plot.