Secrets could be exposed as Rosamund arrives at Downton following Edith's shock departure. Rose is delighted to introduce Atticus and his parents to the Abbey, while Anna and Bates start thinking about a fresh start, now that the worst of their problems are seemingly behind them. Molesley is concerned to see Daisy becoming disillusioned with her studies, and Isobel makes a happy announcement, but there may be trouble on the horizon. Violet has her hands full with her warring servants, while Mary and Blake seize an opportunity to send Gillingham a strong message.