Heidi Thomas Prepares To 'Call The Midwife,' Again

For six years and six seasons of television, screenwriter Heidi Thomas has explored the challenges of 1950s-era British midwifery. Now, as the seventh season of her PBS drama Call the Midwife heads to air just ahead of her upcoming MASTERPIECE adaptation of Louisa May Alcott’s Little Women , Thomas explores how a charming midwife’s memoirs became an unlikely global success story.