1 The Mines of Ypres
The British successfully used a mining technique known as 'clay kicking' to plant mines under German tunnels during three battles in Flanders. 500,000 soldiers were killed for 900 metres of gains.
2 Monte Paterno
A personal account of the tragic battles that unfolded amid the sharp gullies and ravines of the Dolomites, requiring men to perform the nearly impossible: excavate and tunnel through solid granite in freezing weather.
3 Vauquois, Hill of Death
For three years, the Germans and French blow each other up with massive explosions, using a maze of underground galleries and tunnels. This story is told through the preserved diaries of Herman Hoppe, a German engineer who built many of the tunnels.
4 Col di Lana
Exploring trenches and tunnels and interviewing descendants of the Austrians and Italians who fought under and above the treacherous terrain of the Dolomite mountains.
5 The Secret of the Somme
An exploration of newly discovered fortresses, dugouts, and bunkers tells the story of the innovative German engineering that made defenses resistant to massive bombardments.