U.K. fans of the hit British-American drama, Downton Abbey, continue to gear up for its annual Christmas Special, and it appears that no stone will be left unturned in the featured episode.

Details On Harvey Levinson & 'The Gangs' Arrival To Downton 

Shirley MacLaine (Martha Levinson) will be returning to Downton to reprise her role. However, it's the unfolding of a current murder plot that has served to pique the interest of loyalists. as Mrs. Hughes (Phyllis Logan) will more than likely become aware of the murderer's identity.

In what appears to be a crucial scene pertaining to Mr. Green's (Anthony Foyle) killing, the housekeeper can be seen in the servants' hall discovering a ticket inside a coat pocket.

Daily Mail reported on Dec. 15 that "the possibility is that the ticket might belong to Downton valet Bates, which could mean not only that he is tried for murder for a second time, but sent to the gallows."

Nonetheless, it's a seemingly strong possibility that Bates (Brendan Coyle) just may have taken the situation into his very own hands upon the realization of the person's identity that raped his wife, Anna (Joanne Froggatt).

'Serious Shakeup' & Another Major Death To Occur In Season 5?

Downton Abbey will be airing the season 4 Christmas Special on Sunday, Dec. 25 in the U.K's ITV. The TV series will be debuting its fourth season in the U.S. on Jan. 5, 2014. Be sure to keep checking back for more details. An official trailer of the special episode can be viewed below.