Tucked away in his lab on the University of Arizona campus, archeological scientist Greg Hodgins solves unsolved mysteries: he's discovered the age of a domesticated dog skull found in a Siberian cave (33,000 years old) and dated millennia-old petroglyphs. But his work isn't all in the field of geology: he also solved cold cases by identifying bodies of people who've been missing for years.
Producer: Vanessa Barchfield
Videographer: Mitchell Riley & Nate Huffman
Editor: Bob Lindberg