On Game of Thrones Season 4 Episode 8, The Viper did battle with The Mountain.

And we all know how that turned out. (Sorry, Tyrion. Tough break.)

Next Sunday, meanwhile, a different kind of fight will be featured on Game of Thrones Season 4 Episode 9, with the installment titled "The Watchers on the Wall" and with the official HBO promo only teasing one event:

The men of The Night's Watch preparing for their ultimate showdown.

Will Castle Black really be standing come morning? Check out the network preview now:

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.