One day Rainbow Dash goes missing. Twilight, Pinkie, Applejack, Fluttershy and Rarity soon discovered that Dash has been taken to 'the other side' a parallel universe much like their own, only with slight differences in society and their own alternate selves; where some may have never met because the Rainbow Dash on the other side didn't exist to create the Sonic Rainboom.
Later on, if you read on, a war develops between the two parallel universes. Can either universe survive? Or will both worlds perish?
This will be a crossover with the TV series Fringe on FOX. Also the picture is how Twilight would look like on the other side.