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Hitler's Secret Underground Factory

In the quest for world domination, the Nazis built some of the biggest and deadliest pieces of military hardware and malevolent technology in history. This programme explores the story behind one of the most technologically advanced aeroplanes of the Second World War, awe-inspiring fighter jet the Messerschmitt Me 262, and the huge subterranean cave where it was built

Saturday, 16 May 1 airing
22:00
National Geographic Channel
S1 E5 · Hitler's Jet Caves