On an August night in 2013, 26-year-old Brandon Lawson got into his truck after an argument with his wife and drove off, intending to spend the night at his father's house. He never arrived. His truck was reported abandoned on the side of the road, and Brandon made increasingly panicked phone calls to his family, saying he was somewhere nearby and bleeding. It's the call he placed to 911, though, that could be the key to solving this mystery - if only we could figure out what he's saying on the tape.