When Twilight accidentally shouts out to the children of Ponyville that Santa isn't real, everypony starts to get upset and their mood for the holiday starts to fall, even Pinkie starts to get upset when she finds out that her ideal isn't real. But then why, out of all the ponies in Ponyville, is Rainbow Dash the only pony trying to tell them that he is. Well...everypony will know why, when she shows off an old friend to them.