The Rebel Rose is the story of Mary Stuart Beaton, a descendant of Mary Queen of Scots who has come to London in the hope of having her family claims legitimized. The Pretendress -- as she is called, finds herself caught up in the devices of her own personal guardians as well as a scheming London society woman scorned by a powerful member of Parliament who has become an admirer of the Princess. Apart from the claims of royalty, Mary Beaton knows where her worth is found and she proves to be a formidable opponent for all those scheming for and against her.