Celestia insisted that human and pony shouldn't be together. But why? What made the princess so certain that this was how things had to be? Well, whatever her motivations, when it becomes clear that Rainbow Dash's connection to her 'father' is so strong that Twilight's spell isn't going to keep her memories blocked out forever something has to be done. Will Dash be allowed to return 'home?' And what will she find when she gets there?