The first of six films in which Richard Holmes examines how the First World War was fought in trenches, forts and bunkers.

Holmes follows the route taken between August and December 1914 by the 100,000 men of the British Expeditionary Force as they went to fight the Germans in France.
At first it was a war of movement as huge armies were taken by rail to the front line. But by Christmas, the Great War had become bogged down in the trenches of the Western Front.
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(Repeated next Saturday)
(Digital widescreen) (Subtitled)
Back to the Front: page 6