What began as a routine cave exploration in Utah ended in one of the most horrifying tragedies modern rescue teams have ever faced — and years later, the story of John Edward Jones still leaves people shaken.

In November 2009, the 26-year-old medical student, husband, and father entered Utah’s infamous Nutty Putty Cave with friends and family members, expecting another adventurous day underground. Instead, he became trapped in a nightmare that would ultimately cost him his life and permanently change the caving world forever.

John had always loved exploring tight cave systems and narrow underground passages. Nutty Putty Cave, located near Utah Lake, had long attracted thrill-seeking explorers because of its twisting tunnels and extremely confined spaces. But deep inside the cave system, John mistakenly entered an unmapped passage he believed was part of a familiar route.

The tunnel narrowed into a tiny opening measuring roughly 10 inches high and 18 inches wide. As John pushed forward headfirst, gravity pulled him deeper until he became completely wedged upside down.

There was no room to turn around.

No room to crawl backward.

And soon, almost no room to breathe.

No room to crawl backward.

And soon, almost no room to breathe.

For nearly 27 exhausting hours, rescuers worked nonstop underground trying to save John. Teams squeezed through dangerous passages carrying ropes, pulleys, medical equipment, and drilling tools. Some rescuers risked their own lives crawling through the unstable tunnels just to reach him.

A newly released documentary from the YouTube channel EWU Unsolved has now revealed never-before-seen footage from inside the cave, offering an even more heartbreaking look at the rescue mission.