When Call the Midwife returns to the United States, there's going to be one particular storyline that viewers are going to want to prepare for.

New Character Begins 'Quite Badly' On 'Call The Midwife'

On Saturday, Lancashire Telegraph posted the details from Jenny Agutter (Sister Julienne) who dished on the Christmas special that took place over the holiday season and how it compares to the opening episode of season four.

"It was different, unlike episode one [of series four] which was very specifically about an issue at that particular time, child neglect," the actress revealed. "Not that that isn't still the issue today, but it's been very focused on particular stories."

Cast Members Were Crying During 'Call The Midwife' Rehearsal?

Agutter also pointed out that she didn't feel like the Christmas episode had quite the same feel as some other instances that took place on the series.

"I didn't think it was as strong as the other stories have been, in a way only because it had to be quite broad and draw everybody in," she said.

The British drama will move into the 1960's and based on what the actress had to say, there will be some opposites taking place.

"This series was very much about the beginning of the sixties, and with that, you see all the wonderful opportunities that people start to have; you have the NHS and you start to take things for granted," Agutter explained. "Then on the other side of that, there's quite a lot of anguish; suddenly one looks at the rotten parts of society, realizing how bigoted people are; realizing how stuck one is with certain things."

Call the Midwife Season 4 airs in the United States on Sunday, March 29 at 8 p.m. ET on PBS.

Tags: Call The Midwife television PBS