The storm clouds that have been gathering over Anna and Bates finally burst. Meanwhile, Robert comes to a realisation.
Relations between Robert and Cora are strained. Edith receives some terrible news and decides to take drastic action.
Rose is delighted to introduce Atticus and his parents to her family. Molesley is concerned about Daisy.
Simon Bricker returns to Downton to discuss the painting with Cora and Inspector Vyner returns with some ominous words of warning for Anna.
Sarah Bunting continues to cause waves above stairs. Violet reveals to Isobel the surprising truth of her past with Prince Kuragin.