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Josh Gates goes deep underground in Poland to explore the mystery of the America Bomber. This secret WWII aviation project was hidden in a vast network of tunnels designed to evade Allied detection. From discovering aircraft debris to exploring Nazi barracks, the Expedition Unknown team uncovers the physical evidence of a project that could have changed the course of World War II. #ExpeditionUnknown #DiscoveryUK
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From season 10 episode 4.
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