What is the song named in the ending scene on flashpoint season 3 episode 18 thicker than blood?

In the ending scene of "Flashpoint" Season 3, Episode 18, titled "Thicker Than Blood," the song playing is "I Will Follow You into the Dark" by Death Cab for Cutie. The song's somber and reflective tone complements the episode's emotional themes, highlighting the deep connections and sacrifices made by the characters.