Downton is being prepared as a convalescent home for wounded officers and Isobel Crawley is driving Cora up the walls. O’Brien is eager to ensure that Cora is recognised as the mistress of Downton and suggests she needs an ally in the hospital - Thomas. A suggestion that doesn't go down well below stairs. The first convalescent group arrive, as does Matthew, who is home on leave. Matthew suggests he bring his General, Sir Herbert Strutt to inspect the new convalescent home. Elsewhere, new housemaid Ethel flirts with a young officer, Major Bryant, incurring the wrath of Mrs Hughes in the process. Violet is certain that Mary is still in love with Matthew and is determined to undo Matthew’s engagement. Together with Rosamund she discovers that Lavinia is hiding a secret from Matthew and is somehow acquainted with Sir Richard Carlisle. She is determined to discover how...