Narrated by Jack Fleming. They were perhaps the finest collection of football players ever to grace an NFL gridiron. In the 1970’s the Pittsburgh Steelers, with the fabled “Steel Curtain” defense, a powerful running attack and an electric passing game, rolled to four Super Bowl Championships. The best of the lot had to be the 1975 team that capped off a celebrated season with a thrilling Super Bowl victory over the Dallas Cowboys.