The Miami Dolphins of the late 1960s were a laughingstock, an expansion team, and a franchise where careers went to die. Then came Coach Don Shula. In just a few short years--through hard work, long practices, and his no-nonsense attitude toward the game--Shula transformed the team into a championship franchise. The Dolphins were by and large unseasoned players or rejects from other teams. Even so, they made it to Super Bowl VI. They suffered a humiliating loss to the Dallas Cowboys, becoming the first team in Super Bowl history not to score a single touchdown. But Shula closed the 1971 season by telling his players to remember this loss and make sure nothing like it ever happened again. And they listened. Based on years of research and interviews, Undefeated (It Books, $25.99), by award-winning journalist and author Mike Freeman, examines what is perhaps the single greatest accomplishment in team sports history: the unforgettable NFL season in which the Dolphins didn't lose a single game. There has never been a football team like those Miami Dolphins, and there may never be again.