Diplomat Sir Hallam Holland moves into the iconic townhouse along with his wife, Lady Agnes. With the help of former parlormaid Rose Buck, they launch a whole new era for the sumptuous home at the heart of Upstairs Downstairs.
November 1903: Clemence, young and inexperienced, is hired on a trial basis by Lady Marjorie, who decides Clemence is not an appropriate name for someone in service and changes it to Sarah. Being far too outspoken and having a tendency towards over exaggeration and drama, Sarah struggles to fit in and become accepted by the other servants.