Parade's End

Principled aristocrat Christopher Tietjens enters into a destructive marriage with a cruel socialite, but vows to stay faithful.

Sylvia and Christopher reconcile and move to a flat opposite Macmaster. Later, Christopher enlists in the army, infuriating his wife.

As Christopher recovers from shell shock, a round of vicious rumors leads to a shocking tragedy at Groby, his family home.

Sylvia visits Christopher in France. Later, his leniency towards a deserter and his contradiction of an officer have dire consequences.

Christopher takes over at the front. Later, he is sent home where Sylvia tries to keep her husband from building a future with Valentine.