This story is a sequel to Escaping from Celestia
After her permanent relocation to Unicornia, Twilight Sparkle lets her parents know that if they want to see her that she will not return to Canterlot, they will have to travel to see her. They had initially planned on meeting up in Dodge Junction for Hearth's Warming but given the nature of Unicornia, Twilight forgets when Hearth's Warming is so her parents have to brave the dark forests to come see her.
Story also includes Cherry Jubilee.