On an average day in Ponyville, Dusk Shine and his friends find out the truly fascinating side to Rainbow Blitz after he accidentally eats some Poison Joke. The encounter with Blitz's other persona leaves the colts dazed and lost in another Ponyville and they soon discovery that there isn't just a mirror image of the town, but also of themselves. Maybe some mysteries will be unraveled and ideas brought to life.