This documentary sees military historian Alex Churchill travelling through Germany and the Belgian battlefields, retracing the opening weeks of the First World War - a blood battle that took place before the trenches, barbed wire and gas we typically think of when we think "First World War" - instead, this was a battle that saw modern weapons being used on the battlefield up against old fashioned, Napoleonic military tactics that had tragic consequences for both sides.

It's also a battle that took place before the British had even arrived on the continent. It's the story of little Belgium who stood up against German aggression, and who were able to slow up the German war machine for several weeks, allowing French and British forces to arrive to finally stop the Germans from capturing Paris.