In this replay episode: On a beautiful summer morning in 1908, a massive explosion hit Siberia. It downed 80 million trees and lit the night sky 3,000 miles away in Sweden. But to this day, no one knows what caused it.

The Backstory: Neil Young: Godfather of Grunge. Rock Star Dad. Heart of Gold
09:23

The Backstory: Blizzards, Survival, and Cannibalism
10:56

The Backstory: The Sex Scandal That Foreshadowed the Epstein Case
07:06