Modern Family's Dunphy clan had a quiet summer holiday, but "The Long Honeymoon" will quickly prove that three's a crowd for Phil and Claire's children.

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The Dunphy's and the Pritchett's will all have a little adjusting to do at the start of season 6 as the ABC comedy attempts to return its characters to the humdrum routine of the school year.

After a long summer away on a humanitarian trip, Alex (Ariel Winter) will return home only to disrupt the Dunphy's peaceful routine. The middle child will change the home dynamic, sparking the group's usual dysfunction.

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Alex won't be the only one causing problems, however. Cam (Eric Stonestreet) and Mitch (Tyler Ferguson) will try to settle back into their every day life following wedding chaos and honeymoon relaxation, but Cam will have a little trouble transitioning from newlywed bliss.

Meanwhile, the impeccably dressed Gloria (Sofia Vergara) will switch up her wardrobe when Jay's (Ed O'Neill) lackadaisical ensembles start to get on her nerves. What will Jay do when his wife turns the tables on him?

Find out more when Modern Family returns to ABC on Sept. 24 at 9 p.m. ET. Click the video to see a preview for season 6.

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Modern family, Television, ABC