Andrew Scarborough

Robert and Carson are dismayed when a Labour government comes to power in the general election of 1924; Lady Mary receives another proposal from Tony Gillingham.

Rosamund arrives at Downton following Edith's shocking departure; Edith's secret may be exposed to the family; Rose is delighted to introduce Atticus and his parents to Downton for the first time.

Mark Antony runs Rome while Caesar pursues Pompey; Pullo takes Octavian to a brothel; Atia tries to mend fences with Servilia.

With the house recovering from the night's dramatic events, Robert is faced with a very difficult decision; as Daisy continues to struggle with her studies, Mrs Patmore has an idea that might solve everything.

In the summer of 1923, Rose is presented at Buckingham Palace and has her coming out ball at Grantham House.

Mary's past catches up with her when an unwelcome visitor delivers an ultimatum, and news about the running of Downton Hospital sets Violet on the warpath.