"A Christmas Prince: The Royal Baby" is a holiday romantic comedy film that follows the story of Amber, an American journalist, and her fiancé, Prince Richard. As they prepare for the birth of their first child, they face challenges that test their relationship and royal duties. The film is set in the fictional kingdom of Aldovia and features themes of love, family, and the importance of tradition. Amber and Richard must navigate political intrigue and family expectations while ensuring the safety of their future heir, all during the festive Christmas season.