The Great Underground War (2014)

First Air Date: 2014-08-10
Last Air Date: 2014-08-10
Total Seasons: 1
Total Episodes: 5
Episode Runtime: 45 min.
Network: Fact TV UK
Director: Paul Russell
Creator: Andrea Vogt, Paul Russell

A five-part series that explores the forgotten story of the incredible engineering feats and secret survival techniques of five legendary battles fought underground during World War I.