Tensions flare between Isobel and Cora. Ethel’s flirtation with Major Bryant lands her in hot water. There is worrying news about Matthew. Branson declares his feelings for Sybil.

Robert receives some shocking news from the front. Daisy’s relationship with William moves faster than she would like. Vera threatens to expose old secrets.

Carlisle threatens to ruin Mary if she jilts him. A major comes to stay – but is he really who he claims to be? Bates learns that Vera has succeeded…

How long can Sybil and Branson keep their secret? Carlisle puts Anna in a difficult position, Bates is left reeling from the news about Vera, and Thomas embarks on a…

With the wedding approaching there is excitement in the air, but will Branson’s plans rattle everyone? A decisive Anna forces Bates to think about their future.

The Great War unsettles life at Downton and surprising news about Matthew rocks the family. New maid Ethel irritates O’Brien – and Bates returns with devastating news for Anna.

Carson is finding it tough maintaining standards in the house, and the suicide of a young officer prompts Isobel to suggest converting Downton Abbey into a convalescent hospital.

After Downton is turned into a convalescent home for wounded officers, Matthew brings a general to visit, but Branson has a surprise in store. And is Lavinia hiding something?

Isobel finds herself at odds with Violet. Mary is introduced to a potential suitor but wants to be with Matthew. Anna works out who stole a valuable snuff box. O’Brien…

Sybil puts herself in danger when a fight breaks out. Sybil’s sisters notice Matthew’s feelings for her. Mary is surprised by a marriage proposal. Bates clears his name over the…

Cora’s pregnancy throws the inheritance issue into doubt. Matthew must wait for an answer to his wedding proposal. O’Brien discovers more compromising information about Bates. Thomas leaves.

After the death of the heir, Violet wishes that Robert’s daughter Mary could inherit Downton Abbey.

Matthew Crawley and his mother Isobel arrive at Downton, and have difficulty settling in. Carson is mortified when confronted by his past. Violet attempts to promote a match between Matthew…

Cora’s tries to set up Mary with Evelyn Napier, who falls for his friend instead, with significant consequences for the household. Bates takes action to help cure his limp.

Mrs Hughes finds herself the focus of speculation when she meets a former suitor who makes her question her position. Violet and Isobel clash over a medical ailment affecting Molesley….

Hae-na finds out that Seo-won is afraid of dogs. It complicates things as she has to get a kiss from him while she’s changed to a dog. The vice principal…

Anna senses the dark presence closing in on her, closer than ever. Ms. Preecher reveals pieces of her past and may know the truth about what’s happening to Anna and…

Chucky’s complex motivations are revealed; Tiffany is tried for Jennifer Tilly’s murder spree.

Attorney Gi Mu Hyeok decides to disclose every truth behind the case of Su Ah’s murder. He first announces the inappropriate relationship Congressman Yu had with a minor, and continues…

Lieutenant Oh turns himself in to prosecution and addresses everything about the murder cases. He also says that it was Congressman Yu who ordered such horrible crimes. At the second…