It's going to be a new world as the characters embrace a different generation on Call the Midwife.

In the fifth season, everyone is about to find out what life was like in the 1960s, which is bound to have new kinds of drama than the 1950s.

On Sunday, Bustle released details from Jenny Agutter, who plays Sister Julienne, on the series. She mentioned there will be exciting times that will also come with its challenges.

"Suddenly there is a new energy and everything that had been held back during the war- the science, the arts, the music- everything surges on," Agutter said. "So you arrive in 1961 and it is a brave new world. There is more available, the NHS [National Health Service] is established, and everyone is beginning to expect so much. There's more liberties, more freedoms, and with it comes greater responsibility and more choices."

The actress then pointed out how thalidomide will be one of the big storylines in the new season when it starts off as a cure only to lead to serious side effects with unborn children.

"The very first episode echoes the last you saw in four which is, of course, there is a child born with shortened limbs," she said. "We don't know what that is until the very end because the whole of the series has that as an overriding arc- which is thalidomide. So that is very much one of the big things it takes that on."

Call the Midwife Season 5 premieres on Sunday, April 3 at 8 p.m. ET on PBS.

Tags: Call The Midwife television PBS