Opinions are divided above and below stairs when Tom and Mary open Downton Abbey to the public for a day, in aid of the hospital. Mr Dawes, the headmaster, has a proposition for Mr Molesley, and Baxter is thrown into turmoil when she receives an unexpected letter. Plans for the hospital takeover reach a divisive resolution, with battle lines drawn between Cora and Violet. Carson has an axe to grind with Thomas, but all is not as it appears. Mary surprises Henry with a visit to London, while Bertie comes to Downton to see Edith. Can the sisters overcome the shadows of their pasts and find happiness?