Downton Abbey season 5Technically, Downton Abbey doesn't have a "worst" season, per se, but if there were one that had the weakest plotlines overall, it would be this one. Downton Abbey: A New Era (2022)The second film in the Downton Abbey franchise is the weakest of the trilogy for a few reasons. Downton Abbey: The Grand Finale (2025)This film marked the conclusion of the Downton Abbey franchise, a feat which wouldn't be easy to achieve satisfactorily in everyone's eyes. Downton Abbey season 6Upon its airing, we all thought this was the last we would see of the iconic Downton Abbey residence and its inhabitants, both upstairs and downstairs. Downton Abbey season 2Undoubtedly, the second series was the epitome of Downton Abbey.