Episode 1

It is April 1912, and news arrives of the sinking of the Titanic with the loss of Downton's heir James and his son Patrick.

Episode 2

Matthew and his mother Isobel arrive at Downton, but trouble lies ahead as doctor's widow Isobel immediately finds her views at odds with Violet's.

Episode 3

Mary is instantly attracted to handsome Turkish attache Kemal Pamuk, but their romance is cut brutally short and sends ripples of unease through the house.

Episode 4

Violet and Isobel are in conflict over a medical ailment affecting Molesley, and Carson fears that there is a thief at Downton.

Episode 5

Mary is introduced to a potential suitor, but she thinks that he is too old and stuffy - meanwhile, Mrs Patmore fears she may be going blind.

Episode 6

Sybil's interest in politics gets her in trouble, Matthew and Mary's relationship takes an unexpected turn, and Bates makes a shocking revelation.

Episode 7

The family is astonished when Lady Cora Crawley finds that she is pregnant, and the announcement leaves Mary wondering how to answer Matthew's proposal.