Professional football became a cultural juggernaut in the United States over the course of the 1966 season. Especially known for the NFL-AFL merger and the first Super Bowl, the season laid the foundation for football's modern dominance. Through meticulous film study, archival research and fresh interviews, the book captures the spirit of an eventful era, which featured the birth of NFL Films, the arrival of soccer-style kickers, sideline spy scandals, battles over press access to locker rooms, interactions with Congress, the start of the common draft and the expansion of television coverage that brought the gridiron into millions of living rooms.