Plot Summary:November 1916. Matthew is fighting in the horrific Battle of the Somme but at Downton Robert, given a courtesy title as head of the local yeomanry but deemed too old to fight, and William, forbidden by his father to enlist, feel frustrated as white feathers are given to non-combatants. Sybil also feels useless and goes to York for nursing training whilst Mary hides her disappointment when Matthew, home on leave, brings his betrothed, Lavinia Swire, to meet her. She nonetheless sees him off, giving him her lucky mascot, as he returns to the fighting, Back in the trenches he meets Thomas, sick of the war, who deliberately gets himself wounded. John returns from his mother's funeral, hoping to buy off his greedy wife Vera with his inheritance and marry Anna. However, now that he has money, Vera turns up and threatens to expose Anna's part in Mary's indiscretion with the Turk Panuk unless he leaves with her immediately - which he does. Fortunately a suspicious Mrs. Hughes has overheard them and gets Carson to put Robert in the picture without exposing Mary. Unaware of this, a sorrowful Anna is comforted by Ethel, the starstruck new maid who is felt by the other staff to have ideas above her station.
该剧是英国ITV出品的古典剧，由荣获奥斯卡的金牌编剧Julian Fellowes一手打造， 明星云集的演员阵容极其耀眼。 第二季的故事从1916年到1918年康边停战协定。正值战争时期，壮年男性都去了前线参加战争，而Grantham伯爵Robert因为年龄而无法服役而留下。而唐顿庄园却因此遭到了男性劳动力的短缺。Grantham家三个女儿的命运也发生了改变。Mary为了掩盖年少时的丑闻不得已与一暴发户订婚，当回到唐顿发现Matthew已经订婚时，强忍悲伤。Edith一改往日张扬跋扈留在家中照顾前来疗养的士兵。Sybil不但投身于为女权运动还不顾反对与家中的司机结合。同样，在本季中，Bates和Anna的感情戏也加重了戏码。在这个战火缭绕的年代，这个家庭又会发生了怎么样的变化呢？
