Alex helps Hailey figure out an easy way to make money, while back at the symphony hall, an older musician collapses when Rodrigo pushes him too hard. After being humiliated by Rodrigo's assistant, Hailey lets off a lifetime of steam, and is caught off guard when Rodrigo makes her an offer.
The Doctor and Clara have to face their last ever Christmas - they find themselves trapped on a arctic base and under attack from terrifying creatures. They soon realise the only person who can save them is Santa Claus.
Jennifer prepares for Christmas at home with Philip, and reminisces about her friends and colleagues back in her youth. Rehearsals get underway for the Sunday School Christmas concert, as Chummy tries to choreograph the dancing snowflakes. Chummy is also enlisted alongside Patsy to run a poorly managed mother and baby home. Cynthia is drawn into a case which concerns two former residents of a Victorian mental hospital who have been left to fend for themselves.
Lord Sinderby has rented out Brancaster Castle and invited the Crawley family for a shooting party. Stowell has a axe to grind as the rest of the family enjoy the fun. The families get better acquainted with one another. Back at Downton the servants hold the fort. Anna faces up to a uncertain future behind bars, Bates decides to take drastic action to clear her name. Carson and Mrs Hughes consider going into business together. Baxter and Molesley work together on a joint plan.
Miranda is exactly were we last saw her, with two proposals - one from Gary and one from Mike. But who will she choose and can she cope with the pressures of being a wife?
