Stephen McGann presents a look at the true stories behind the drama series, meeting midwives, nuns and doctors who worked delivering babies during the 1950s and 1960s to hear their accounts of the social and medical changes of the period. He talks to a former colleague of Jennifer Worth, writer of the original Call the Midwife books, and a photographer who documented the social conditions of the time. Stephen also returns to the home where he was born to share his mother's own story of childbirth.