Agatha and James spring into action when the local vet and village heartthrob is found dead, the day after he and Agatha went on a date.

Jax discovers a deadly secret from her past that she is desperate to understand with the help of Ralen and Pilar while the CIS grows increasingly suspicious of Xander’s divided…

While Margaret Thatcher struggles with the disappearance of her favorite child, Elizabeth reexamines her relationships with her four children.

Cora’s mother sweeps into Downton for Matthew and Mary’s wedding, but with the couple’s relationship under strain will they even make it to the altar? New footman Alfred strives to…

It is now 1925, when secrets and rifts threaten the unity of the family, while those below stairs are faced with social changes.

Lady Mary’s meddling gets Mr Carson into trouble with Mrs Hughes. Cora and Violet lock horns over the hospital takeover plans. Robert has a tough decision to make.

Preparations for the wedding of Mr Carson and Mrs Hughes are under way. Edith meets up with an old acquaintance. Spratt has something to hide.

The house is made open to the public to raise money for the hospital, an act that divides opinions among the family and the servants. Tensions between Violet and Cora…

Bertie’s circumstances change suddenly, leaving Edith uncertain whether to risk telling him the truth or keep her past a secret at all costs. Mary wonders if she can ever make…

Simon Bricker returns to Downton to discuss the painting with Cora. Branson makes a difficult decision about Sarah Bunting. Rose encounters a handsome stranger. Determined to stop Isobel making the…

Rosamund shows up at Downton following Edith’s surprise departure. Rose is pleased to introduce Atticus and his parents to everyone. Anna and Bates think about a fresh start, now that…

Brianna grapples with life-changing revelations and Claire must help her come to terms with the fact that she is her father’s daughter. Roger brings news that forces Claire and Brianna…