Season 5 finds the Crawley family and the staff struggling with responsibilities and choices as they adjust to life in the Roaring Twenties. A new Labour government heralds changes that are being felt throughout the land, and Robert, Mary and Branson together must navigate these shifting sands to ensure the future of the estate for generations to come. As Branson finds himself playing a more crucial role at Downton than ever before, he can’t help questioning his place in this world. Mary is finally coming to accept that she would like to marry again, but will she ever be able to find the same happiness that she had with Matthew? Meanwhile with still no news of her beloved Gregson, Edith suffers under the burden of her terrible secret.