In this re-release episode: The Netflix hit film Society of the Snow is the true story of South American athletes trapped in the snowy mountains after a plane crash…with some surviving by eating their dead teammates. Now we look at the Donner party of pioneers in 1846, trapped in 22 feet of snow in the Sierra Nevada mountains…and the even more gruesome way some of them survived.

The Backstory: The Horrifying Afterlife of Lincoln's Guests at Ford's Theater
10:11

The Backstory: The Secret NASA Test That Almost Ended the Space Race
08:04

The Backstory: Space Junk Falling From the Sky
08:43