Leonard, a seasoned ultramarathoner, encountered a stray dog while he was racing through the Gobi Desert in China and Mongolia. The dog kept pace with him for nearly 80 miles. Taking care of the dog gave Leonard a new perspective on life. He named the dog Gobi, and fought to bring her home with him with the help of strangers and a viral outpouring of assistance on the internet.

"For David Goggins, childhood was a nightmare. Poverty, prejudice, and physical abuse colored his days and haunted his nights. But through self-discipline, mental toughness, and hard work, Goggins transformed himself from a depressed, overweight young man with no future into a U.S. Armed Forces icon and one of the world's top endurance athletes. The only man in history to complete elite training as a Navy SEAL, Army Ranger, and Air Force Tactical...