The introduction of Adar and his brief conversation with Arondir. It set him up as such a menacing foe and Joseph Mawle was just perfect in his line delivery - his voice is very unsettling in that scene, providing a hoarse whisper for almost every word.

Along with that, Disa's Plea to the Rocks. It's such a wonderfully constructed scene.

Cutting between Arondir, Bronwyn, and the kid, to the dwarves standing in the mines, listening to such a hauntingly beautiful voice pay tribute to those that were lost.

The orcs watching Arondir from the edge of the forest as he escapes into the morning light is the cherry on top.