This 2017 episode covers the Cuyahoga River catching fire for the last time in 1969. This event is often credited with helping pass the Clean Water Act and inspire the creation of the Environmental Protection Agency.

Behind the Scenes Minis: Dicey Sources
23:06

Unearthed! In Spring 2026, Part 2
38:47

Unearthed! In Spring 2026, Part 1
43:14