Credit: Video Still

Although Downton Abbey Season (or "Series," if you're British) 3 isn't set to hit the US until early 2013, it will air in Britain starting in September, which means the promos are already revving up.

In this first full preview of the season, we get a glimpse of Shirley MacLaine as Martha Levinson, Lady Grantham's mother. Plus: Anna is determined to get Bates out of jail, the Crawleys have money problems, and Mary and Matthew fight. A lot. Sigh. So much for their fairytale ending. Did anyone really think that would last?

Check it out below.

Credit: Spoiler TV Photo: Watch the First Downton Abbey Season 3 Trailer (VIDEO)

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Rebecca Martin is an editor at Wetpaint Entertainment. Follow her on Twitter @BeccaMartin47.