'Downton Abbey,' Season 5 Trailer: Jimmy Kent In Bed with Random Woman

Looks like the craziest season yet!

— -- "I feel a shaking of the ground I stand on," the official trailer for "Downton Abbey," season 5 begins by saying.

Read: 'Downton Abbey' Makes Glaring Historical Error in Press Photo

A fight for the right to raise a grandchild, Jimmy Kent caught in bed with a random woman, fights at the dinner table and more fiery scenes suggest that the new season of "Abbey" may be the most contentious yet!

Check it out below and check out season 5 on PBS on Jan. 4, 2015.