Rarity has had flirts in the past, but one thing she has never considered a romantic option is a mare - particularly a pink mare, who just so happens to be snuggling up to her under the blankets when she awakes from a hazily remembered night.

Underneath the bridges and streets and buildings of Fillydelphia in the year 3036, there lives a secret organization of hooded ponies that worship a paganistic demi-god who they have foretold to destroy the whole world. Just so happens, the TARDIS, The Doctor, and his new entourage are passing through the area, just as the cult is unveiling their plans.

In order to prove to Vinyl, Pinkie Pie, Rainbow Dash, and Octavia that the TARDIS can actually travel in time, the Doctor and Derpy travel with them twenty years into Ponyville's past. They first stop at SugarCube corner to find nefarious creatures lurking in the basement, waiting to strike. The first in a series of DerpDoctor, PinkieDash, and VinylTavia adventures through time and space as we enter the strange new world of Doctor Whooves and his entourage.

Pinkie Pie and Rainbow Dash have been together for the past few months, but are reluctant to tell their friends about it.