Extended to eight episodes, BBC One's most successful new drama series since ratings began, sees the return of all its well-loved characters as well as some new faces.
Nonnatus House opens its doors to warmly welcome the audience back into 1950s East End London and continues to follow Poplar's community of exceptional midwives and nursing nuns.
This new season stays true to its roots and viewers can expect to see more births, babies, and bicycling plus blossoming romance from an unexpected quarter.
In the season opener, the midwives celebrate Jenny's birthday with a trip to the cinema. The following day she is assigned a new patient, Molly Brignall. Involved in an abusive marriage, Molly's due date is imminent and Jenny worries about the harm that could come to Molly and her children.
Meanwhile, Trixie and Sister Evangelina find themselves aboard a Swedish cargo ship and looking after the captain's daughter, who is about to have her first baby.
The series was commissioned by Danny Cohen, Controller BBC One, and Ben Stephenson, Controller BBC Drama. It was created and written by Heidi Thomas (Upstairs Downstairs, Cranford).
Executive Producer for Neal Street Productions is Pippa Harris (Revolutionary Road, Stuart: A Life Backwards) with Christopher Aird as Executive Producer for BBC.
The series was produced by Hugh Warren (Above Suspicion, Survivors) and directed by Philippa Lowthorpe (Five Daughters) and Jamie Payne (The Hour, Ashes To Ashes).