As the apparent stability of Edwardian England give way to chaos and destruction, English aristocrat Christopher Tietjens finds himself marrying Sylvia, a beautiful but cruel socialite who is pregnant with a child who may or may not be his.
EPISODE 1
Part 1
In the dying days of the Edwardian Empire, Christopher Tietjens enters into a destructive marriage with the beautiful but cruel socialite Sylvia. Ignoring her overt flirtation with other men, Christopher resolves to remain faithful to her, even when he encounters fearless young suffragette Valentine.
EPISODE 2
Part 2
Sylvia and Christopher reunite; Christopher insists upon moving into a flat opposite Macmaster; after being asked to lie, Christopher quits his job and joins the army.
EPISODE 3
Part 3
Christopher recovers from shell shock in France; Sylvia finds a new admirer; Edith and Macmaster plan a new life together; Valentine secures a teaching job in London.
EPISODE 4
Part 4
Christopher prepares recruits for battle; Sylvia decides to visit her husband in France; the chief of military police is angered by Christopher's leniency; Christopher is ordered to leave Campion's training unit.
EPISODE 5
Part 5
Christopher takes over for a commanding officer with a drinking problem; Sylvia attempts to keep her husband from building a future with Valentine.
Benedict Cumberbatch
Rebecca Hall
Adelaide Clemens
Roger Allam
Rupert Everett
Miranda Richardson
Sasha Waddell
Janet McTeer
Rufus Sewell
Clare Higgins
Tom Mison