Following the Battles of Mons and Le Cateau the already near exhausted British Expeditionary Force, who had been marching and fighting for six days without a break , embarked on a nine day epic march across France. They headed back to the safety of the far side River Marne south of Paris rather than to the traditional haven of British Armiesthe Channel Ports.The BHTV team of historians and battlefield guides take us to the scene of some sharp rear guard actions fought during the Retreat from Mons including the great cavalry actions at Cerizy and Nery, where the mounted British soldier established domination of his German counterpart. As they travel the highways and byways of France they analyze the decisions made by the commanders in that fog of war that together spelt the end of the Schlieffen Plan and set conditions for the 'miracle of the Marne'.