Chasing a lead, Josh Gates rushes to Poland to join locals opening a secret Nazi tunnel system dug into a dormant volcano; he helps remove the stone wall built by the retreating Germans and enters to see what's been hidden for more than 75 years.
Poland
Poland · historical
Josh Gates investigates a secret Nazi tunnel system dug into a dormant volcano, helping locals remove stone walls built by retreating Germans to discover what was hidden for over 75 years.