It's really happening, isn't it? After six seasons, Downton Abbey is coming to an end and we are helpless to stop it. But it seems we aren't the only ones facing down the unrelenting momentum of life this year.

"If I could stop history in its tracks, maybe I would," Lord Grantham muses in this new trailer for the final season. "But I can't, Carson, for neither you nor I can hold back time."

Check out the full trailer below to catch glimpses at all your favorite characters before they say goodbye.

Downton Abbey returns Sunday, Jan. 3 on PBS.