This year's Christmas special is set in year 1965.  Everyone at Nonnatus House is looking forward to a traditional Christmas, but thing do not go to plan.  Sister Monica Joan is rushed to the hospital, while Trixie is angry to receive a subscription to a marriage bureau as a Christmas gift!!   Meanwhile the Circus arrives in Poplar, there's an exciting adventure for Nurse Crane, and Shelagh is involved in a deeply moving birth.