Synopsis 3v5xz
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. 2o1n6h
SEASON 1
The Great Underground War Season 01 Complete 433d62
First air date Aug. 10, 2014
Last air date Aug. 10, 2014
Seasons 1
Episodes 5
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