Downton Abbey: First Season 5 Trailer Features Surprise Hookups, Raging Infernos, Exposed Secrets

“I feel a shaking on the ground I stand on,” opines Carson in the opening seconds of Downton Abbey‘s first Season 5 trailer.

Yes, change will be in the air when the worldwide smash returns stateside on Jan. 4 (9/8c, PBS), and, based on this 60-second clip, some of it is fairly scandalous.

RELATED Downton Abbey EP Talks ‘High-Stakes’ Season 5, Mary’s Long Road to the Altar

“In the new season, we have the high-stakes drama, the laugh-out-loud comedy and the romance,” EP Gareth Neame recently declared. “We have all of the characters doing the things people love to see them doing, but we have a few really nice twists and turns as well.”

Several of those twists are spoiled in the trailer above, so proceed at your own risk.