Season 4 (2021)

Mayhem in Minneapolis
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June 9, 2021 • 42m

A design flaw leaves 13 dead in a horrifying Minneapolis bridge collapse.

Sinkhole at the Museum
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June 16, 2021 • 42m

A massive sinkhole swallows millions of dollars of legendary Corvettes.

Train of Terror
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June 23, 2021 • 42m

Experts investigate the engineering flaw behind a railway disaster.

Terror in Texas
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July 7, 2021 • 42m

Experts uncover what triggered a fatal malfunction at a Texas oil refinery.

Calamity Comes to Canada
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July 14, 2021 • 42m

Engineers investigate a deadly design flaw at a Canadian shopping mall.

Nightmare in New Orleans
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July 21, 2021 • 42m

Experts investigate the collapse of a New Orleans hotel construction site.

Oklahoma Freeway Free-fall
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August 11, 2021 • 42m

Experts investigate a deadly tragedy in an Oklahoma bridge collapse.

Kansas City Skywalk Disaster
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August 18, 2021 • 42m

Experts investigate a deadly hotel walkway collapse in Kansas City.

Suez Canal Catastrophe
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August 25, 2021 • 42m

A container vessel runs aground blocking a critical global trade route.

Pittsburgh Landslide
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September 1, 2021 • 42m

A vital Pennsylvania highway is destroyed after a catastrophic landslide.