Homeland season four: New trailer shows Carrie forced to leave baby for CIA post

The trailer offers a hint at Carrie's life without Sgt Brody

Carrie Mathison is season four of Homeland, where she returns to a CIA posting in Pakistan (Showtime)

A new trailer for Homeland season four has been released, showing Carrie, Saul and Peter back in the field.

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The mellow trailer, set to Emily Hane White’s “Hole in the Middle”, sees Carrie explaining to her psychiatrist sister that she has to return to a foreign posting abroad despite recently giving birth.

“I told you, they’re sending me back. I don’t have a choice,” Carries says, before the trailer cuts to a photo of her baby on her bedside table.

The one minute 19 second clip begins with Saul talking forebodingly about America’s involvement in the Middle East, where he and Peter are stationed.

“It hasn’t been a 14 year war we’ve been waging, but a one year war, waged 14 times,” he says.

Carrie is assigned to CIA Chief of Station in Pakistan in the forthcoming series, but not much is given away about her post in the new trailer other than showing her being attacked in a car.

Peter, who appears to “want out” of his post in the Middle East, asks Carrie: “Checking off names on a kill list doesn’t bother you?” to which she replies: “It’s a job”.

House of Cards’ actor Corey Stoll, who plays Governor hopeful Peter Russo in the Netflix series, also appears in the trailer. Stoll is due to appear in the first episode of the fourth season.

Homeland returns to Channel 4 this autumn.