Amazon Customer

It was 23 months after his accident, and Peter was still dealing with constant excruciating pain. He'd seen dozens of doctors and tried a myriad of medications, but nothing seemed to work. Faced with the impossible choice of suffering through the rest of his life, he had an unlikely epiphany, "If I could somehow hike 2,000 miles on the Appalachian Trail, then my leg will have to be better." He set a starting date three weeks out, cobbled together a novice's pack, and set off on a journey destined to change his life forever—though not exactly how he had envisioned it.

Several years ago, Sam Walker set out to answer one of the most hotly debated questions in sports: What are the greatest teams of all time? He devised a formula, then applied it to thousands of teams from leagues all over the world, from the NBA to the English Premier League to Olympic field hockey. When he was done, he had a list of the 16 most dominant teams in history. At that point he became obsessed with another, more complicated question: What did these freak teams have in common?