As fans anticipate the arrival of Call the Midwife Season 4, a sneak peek of the upcoming Christmas special has been released.

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The clip that was released on Friday shows Nurse Chummy attempting to keep the school girls in order as they dance around her like little angels. As piano music plays, the nurse gives her words on how the girls can keep it up, but some of them have issues. This includes one girl whose head piece falls over her face and she can't even see where she's going.

In the next scene, the guys are setting up a Christmas tree in the Nonnatus House where everyone seems pretty happy to let the tree in. It's actually pretty big for the house since the nuns have to bend over as the men swing it around.

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One the tree officially stands, more laughter and applause goes around the room as the ladies are filled with glee. But as happy as everyone is in the room, the helpers seem a little down and about. So one of the nuns makes a kind gesture and offers to give one of them some of their pie. This picks up into a happy moment again when the ladies realize what the holiday season can truly be about.

Check out the clip below and find out what else will happen in the holiday special, which is expected to air this December on BBC One.

Tags: Call The Midwife television BBC One