From about 0:17 in, there is a sadness to the song that builds into 0:28 with violin. It's a good contemplative song, I imagine it after the heroes lost something important, and now they finally are in a safe area to contemplate. By about 1:17 they are turning the loss into a new resolve, that goes across the team ending with them grouping back up by 1:55. Each one scarred but wiser.