Military guy gets sent on an odyssey of a mission to rein in a rogue Colonel. Along the way he encounters 'The Horror, The Horror' of War. Seems familiar. Oh yes, it's derivative of "Apocalypse Now" and the book "Heart of Darkness" by Josef Conrad. I must vehemently disagree with Ambroz789. This is a sorry mess of a film. Not even appearances by fine actors Colin Firth (the General) or Benedict Cumberbatch (the Colonel) could help.