The Angel of Mons recounts the tale of the advancement of German troops through Mons in 1914, to meet the ill-prepared British Expeditionary Force.  The British troops were forced to retreat, with little hope of saving the lives of those at the front.  It is in these extreme circumstances that many of the wounded and dying soldiers brought back from the Western Front, reported having been rescued by strange angelic forms in the sky that protected them from massacre - The Angel of Mons. 

David Clarke follows this and other myths and rumours in an effort to trace the reality behind the Angel of Mons and discover what it was the soldiers saw.