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Impossible Repairs

Impossible Repairs

2021Returning Series4 Seasons32 Episodes9.0TMDB
Smithsonian Channel

Host Mike Davidson is on a globetrotting mission to get an up-close look at some of the most incredible machines on Earth and to meet the hard-hat heroes that keep them running. This six-part series will take us from the forests of the Pacific Northwest for a heli-logging expedition, to the jungles of the Panama Canal for some big track repairs, to the Alps of Switzerland aboard one of Europe's busiest haulers, and detail how each team overcomes violent storms, mechanical failures, arctic conditions, and more to keep their machines operating.

Season 4 · Episode 6

Tunnel Vision

Jul 6, 2025·42m

Mike joins crews as they build the world's longest railway tunnel in the Alps, fixing gridlock through the infamous Brenner Pass by drilling, blasting and digging their way through the mountains while pushing through a challenging fault zone.

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Direct answers for episode-level questions and details.

When did Impossible Repairs Season 4 Episode 6 air?

Impossible Repairs Season 4 Episode 6 aired on July 6, 2025.

How long is Impossible Repairs Season 4 Episode 6?

This episode runs for approximately 42 minutes.

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