This season is set in the time of the World War 1 raging across Europe which also affected the house of Downton Abbey. It also shares the story of the Crawleys family and how their lives are complicated with their servants as a result of the war. A lot of events occur during this season which includes romance, betrayal, heartbreak, blackmail and scandals.
Julian Fellowes seems to want to give these people character flaws, but then he never makes the effort to develop them further or to explore the ramifications of those flaws.