Robert Grantham has no children and is limited by inheritance rights. After his death, his title and property will be inherited by his brother or nephew. However, both heirs died in the sinking of the Titanic, and the inheritance rights fell to Matthew Crawley, a distant cousin. With his arrival, Downton Abbey has undergone subtle changes. At the same time, the cloud of war is approaching.
Miss Da (michelle dockery,) and Matthew (Dan Stevens,) finally won the wedding that everyone expected, which temporarily put a perfect end to the twists and turns in the first two seasons. However, the troubles continue, and the investment failure of the owner (Hugh Bonneville Hugh Bonneville) has caused Downton Manor to fall into financial crisis; Matthew accidentally received an embarrassing legacy; The combination of Miss San (Jessica brown-Findlay Jessica brown-Findlay) and Tom still rankles the host; And Erxiaojie (played by laura carmichael laura carmichael) is still fighting for her own happiness.