Jeremy Humphrey, an avid ultra-marathoner, turned into a hero last month when he rescued a lost hiker in the Idaho wilderness. 

Laura Dipietro set out on a backcountry hike with her dog Flora in early July. Five days later, she was reported missing when she didn’t show up for work.

Search teams had little to go on and were unsuccessful in their first few days of searching.

Jeremy heard about the situation and felt like he had to do something.

“I just felt like a spark,” Humphrey said. “I knew I had to get out of bed, throw some stuff in the pack and run. My father passed in the mountains. My entire life is intertwined in the mountains.”

He ran over 20 miles into the forest, repeatedly calling out Laura’s name to no avail. Finally, after about 10 hours, he received a reply.

Laura and Flora had survived by drinking water from a nearby lake, but it had been four days since they had eaten any food.

Luckily, Jeremey had some power bars (and cell phone service), and he quickly got them fed and called for help.

Laura and Flora were picked up by helicopter shortly after and have since made a full recovery.