VIDEO: Check Out the Trailer for Downton Abbey's Season 4 Christmas Special

Season 4 of Downton Abbey hasn't even premiered in the U.S. yet, but it's already coming to an end in Britain.

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The trailer for the Christmas special finale offers Stateside fans some hints of what they can expect this season, including possible new love interests for Daisy (Sophie McShera) and Lady Mary (Michelle Dockery). And of course Shirley MacLaine is back as Lady Cora's American mother Martha Levinson -- with Paul Giamatti in tow as her ne'er-do-well brother.

Check out the trailer below. Are you excited for more Downton Abbey?

Downton Abbey premieres in America on Jan. 5, 2014, on PBS.