For 93 days in Somalia, Jessica Buchanan lived in squalor and fear, not knowing whether she would make it back to the United States alive.
In 2011, 32-year-old Buchanan worked for Danish Demining Group, teaching armed violence reduction. One October day, Buchanan's car was stopped by armed Somali pirates.
"The next thing we know, we're completely cut off on one side," Buchanan recalled. "Our windows and windshields are completely splashed an covered with mud. There's a Somali man, he's got an AK to my head and he's screaming at the driver to 'Go!' and we just take off into the desert."
Buchanan and a co-worker were held captive by the pirates for more than 90 days, shuttled to the desert and held for a $45 million ransom.
"They just moved us from one location to the next and it was just out in the middle of nowhere," Buchanan said. "Sometimes we would drive for hours in the middle of the night and just be dumped."
Buchanan wasn't sure she'd survive, but one night in January 2012, she felt a sudden commotion among her captors.
"I pulled the blanket off my face and I saw him, just this look of terror on his face, and he's got his AK and... all of a sudden, the entire night just erupts into gunfire."
An elite commando unit from Navy SEAL Team 6 parachuted in with combat gear, in a mission supported by President Obama.
"All I could say was, 'You're American?' I can't fathom there are Americans out here with me. I'm not alone! Finally, for the first time in 93 days, there's help."
She lay under the protective bodies of two of her rescuers as the assault turned violent - all nine of her captors were killed. She clawed her way into a military chopper and was whisked away to nearby Djibouti.
"I didn't start breathing until we were several hundred feet up into the air and I realized that I was alive and I survived. The nightmare is over," Buchanan said.
She is publishing a book, "Impossible Odds," documenting her harrowing experience.
Aaron Gilchrist will have the second part to Buchanan's story Thursday at 5.