Two Steps from Hell - Master of Shadows.. is the music of.. the apocalyptic battle between John Zatara (Benedict "Yossi" Cumberbatch) and H. H. Holmes (Leonardo diCaprio).. on top of a railroad car until .. awaiting a military blockade with mustard-chlorine gas.. the train must utterly explode to the heavens before.. it encounters.. that blockade...

https://www.youtube.com/watch?v=-PqGc3qiXIs&list=RD-PqGc3qiXIs&index=1