Lucille struggles with her mental and emotional health; Sister Julienne is deeply concerned by an angry red rash on a patient’s breast and a referral is quickly made to St Cuthbert’s.

With Christmas approaching, the midwives move to their maternity clinic and are delighted when their first patient is a familiar face. Life in Poplar returns to normal after the tragic train crash, and everyone unites for a festive talent show.

Christmas 1966 promises to be memorable one. The Nonnatus House team are faced with their busiest Christmas Day ever as the Maternity Home is filled with expectant moms and challenging cases.