Filming wraps on BBC One's Call the Midwife: Sisters In Arms

The three-part Christmas special will air later this year.

BBC One has announced that filming has now wrapped on the three-part Christmas special of Call the Midwife: Sisters in Arms, which will air later this year.

To mark the occasion, new photos reveal Julie Hesmondhalgh, Helena Wilson, Ellie McKay, Liv Andrusier and Lizzie Back in character for the first time on set.

In September 1939, Sister Monica Joan is in her prime, Sister Julienne and Sister Evangelina are young and zealous, and Nonnatus House is the beating heart of Poplar.

Together with Sister Alice and local GP Dr Kit, the nuns dedicate their lives to mothers, babies and those in need. But there is no gas and air, no penicillin, no cure for TB, and no welfare state. Then war is declared - and life gets even harder.

The three young secular midwives who complete the team, Sybil, Olive and Marianne, receive a baptism of fire as the blackout and the Blitz take hold.

While bombs rain from the sky, women give birth underground, families are shattered, children run wild, and whole streets are reduced to rubble. But courage, compassion and resilience triumph as the community unites in its efforts to survive.

Further casting information here.

As filming wraps, writer and showrunner Heidi Thomas OBE said "Call the Midwife has a long and noble history of filming Christmas specials during heatwaves, and this year we welcomed the snow-machine back to the Nonnatus House set like an old friend. But I was surprised how many new emotions Call the Midwife: Sisters in Arms sparked. In particular, the evacuation of Poplar's children, and the fear that they may not make it home for Christmas had us all in tears."

Made by All3Media’s Neal Street, Call the Midwife: Sisters in Arms is created, written and executive produced by Heidi Thomas, and executive produced by Pippa Harris and Ann Tricklebank, who also serves as producer.

Ann Tricklebank has directed episodes one and two, with John Maidens directing episode three. Jo McClellan is the executive producer for the BBC.

Call the Midwife: Sisters in Arms will air this Christmas on BBC One