Little is known about Rainbow Dash's past, but as Ponnyville's first ever rock concert hosts the performances of her favourite band the "Night Ravens," terrible events begin to unfold, showing the true horror behind Rainbow's first ever Sonic rain-boom and how Big Mac knows far more than anyother pony when concerning the Rainbow maned Filly, and he begins to notice the leaad singer of the band, "Kydo" and the drummer "Dirt" seam suspicious, and the simple earth stallion begins to worry for his friends...