The 5 most talked-about moments from this week's 'Game of Thrones'

Warning: spoilers ahead for Sunday's episode of "Game of Thrones."

HBO's "Game of Thrones" gave fans a lot to talk about during Sunday's episode, "The Door."

The emotional and action-packed hour saw the fall of a much-loved character, and the setup of several showdowns to come.

But which moments had fans talking the most?

Social-media monitoring platform Brandwatch found more than 66,000 "Thrones"-related mentions on Twitter during the one-hour episode and identified the moments when conversation peaked.

Here are the five most talked-about moments from the latest "Game of Thrones" episode:

SEE ALSO: 5 important things you probably missed on this week's 'Game of Thrones'

DON'T MISS: The 5 most talked-about moments from last week's 'Game of Thrones'

5. Sansa (Sophie Turner) confronts Littlefinger (Aidan Gillen).

9:07 p.m. ET – More than 1,100 mentions.

4. The White Walkers arrive.

9:49 p.m. ET– More than 1,200 mentions.

3. Sheer jubilation that the episode was starting.

9:01 p.m. ET – More than 1,300 mentions.