S01:E01 - The Mines of Ypres
The story of how a British tunneling technique developed for the mud of Flanders was employed to win the strategic ground during the gruesome trench warfare of the Ypres Salient.
S01:E02 - 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.
S01:E03 - Vauquois, Hill of Death
The story is told through the preserved diaries of Herman Hoppe, a German engineer who built many of the tunnels.the story about how the Great War went on underground in tunnels.
S01:E04 - Col Di Lana
We explore trenches and tunnels and interview descendants of the Austrians and Italians who fought under and above this treacherous terrain.
S01:E05 - 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.