New series. Screenwriter Heidi Thomas, who previously adapted Cranford and Call the Midwife for the BBC, turns her attention to Louisa May Alcott's quintessential 19th-century coming-of-age tale. The story begins in the depths of winter, during the American Civil War, as the March sisters Meg, Jo, Beth and Amy face Christmas without their father, who is away serving as a chaplain for the Union Army forces.