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- Season 1 Episode 6 Holes from Hell

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A giant tunnel boring machine stuck underground, a village sinking into a mountain, and massive holes that could derail a train are engineering catastrophes in need of repair, and experts use cutting-edge technology to reveal if they can be fixed.

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First Air Date: Jan 01, 1970

Last Air date: Jan 01, 1970

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IMDb: /10 by users

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