With Carson on honeymoon, Thomas Barrow is acting butler. Originally broadcast: 11 October 2015, ITV. SPOILER WARNING: Plot points will be revealed in this episode-by-episode discussion of ITV period drama Downton Abbey. ... Gwen, it seems, has married up, and in fact, the school that … Written by Julian Fellowes. Events are expected to get even more interesting as the sixth and the final season of PBS' hit period drama TV series "Downton Abbey" moves on this week with an episode that will see the return of one familiar face. Also, Mary has her head turned, Miss Baxter has a dilemma, Tom Branson is back in… Downton Abbey Recap: Season 6, Episode 4. by Abby Norman | 1:03 pm, January 25th, 2016 . (Picture: Nick Briggs) Another week at Downton Abbey and another drama! Downton Abbey | FACEBOOK/ Downton Abbey. In the sixth and final season of Downton Abbey, while Anna and Mary rush to London to see the doctor, their old friend Gwen comes to Downton for lunch.Gwen used to … Downton Abbey is a British historical drama television series set in the early 20th century, created and co-written by Julian Fellowes.The series first aired on ITV in the United Kingdom on 26 September 2010, and in the United States on PBS, which supported production of the series as part of its Masterpiece Classic anthology, on 9 January 2011.. Directed by Philip John. Game of Thrones star Rose Leslie is returning to one of her first TV roles, as housemaid Gwen Dawson in Downton Abbey.