Watch the PBS Trailer for 'Call the Midwife' Season 7

The new season of Call the Midwife is almost here, so it makes sense that PBS has finally dropped a trailer promoting the popular period drama’s return.

Season 7 will kick off on PBS stations nationwide with a two hour-premiere on Sunday, March 25. It’ll then continue with its regular hour-long episode through May 6.

According to the official program description for the new season, there are many new challenges in store for our favorite nuns and midwives.

Season 7 of CALL THE MIDWIFE opens as the “Big Freeze” of 1963 continues and the midwives persevere through the intense winter. The nuns and nurses of Nonnatus House are being tested as they have never been before, both personally and professionally. All around them they see the old East End vanishing, as slum clearances make way for bold new tower blocks to accommodate expanding communities. They find themselves facing a wide range of medical challenges, from breech birth to cancer, Huntington’s chorea and cataracts.

Trixie and Christopher continue to develop their romance, while Tom and Barbara enjoy life as a married couple. Nurse Crane’s authority is questioned from an unexpected source, and Sister Monica Joan is forced to accept her failing faculties. Additionally, life for the Turners is turned upside down when Shelagh decides to employ an au pair.

Additionally, we already know that several fan favorite characters won’t be returning this season, making way for new faces like Leonie Elliott’s Nurse Lucille, whose addition is meant to help explore the experiences of Caribbean nurses who came over in the 1960s to support the growing NHS.

Watch the PBS trailer for the new season for yourselves: