Ep 4. Season 5, Episode 4

As the fourth episode of the fifth season of "Downton Abbey" begins, the household staff is preparing for a long-awaited concert. Lord Grantham has invited an acclaimed opera singer to perform at Downton. Mrs. Patmore is especially excited by the prospect, as she has long been a fan of the singer's work. Meanwhile, Lady Mary and Charles Blake are working on a project to modernize the estate's tenant farms, which proves to be a contentious issue among the other members of the family.

As preparations for the concert continue, Lady Edith receives a surprise visit from an old acquaintance. Bertie Pelham, now a land agent, drops by to catch up with Edith and the two hit it off immediately. In London, Tom Branson is given a new job opportunity, but he must decide whether to stay in the city or return to Downton and his daughter.

As the night of the concert arrives, tensions continue to simmer between the family and the members of the staff. Lady Mary and Lord Grantham have differing opinions on how to deal with the tenants' concerns and tensions reach a boiling point when a member of the staff is caught stealing from the house. Amidst the chaos, the opera singer arrives and delivers an unforgettable performance that leaves everyone spellbound.

After the concert, Lady Edith and Bertie grow closer and Tom must make a difficult decision about his future. Meanwhile, tensions continue to grow between Lady Mary and the rest of the family as they struggle to find a way to move forward in the face of changing times. As the episode comes to a close, it's clear that the world of Downton Abbey will never be the same again.