Michael Fassbender narrates this documentary about the history of Formula One racing. The film chronicles the sport's development from the 1950s through to the present day, discussing the dangers of racing, particularly in the '70s when the cars became faster but safety measures were still poor. After a number of fatalities, including that of promising young Frenchman François Cevert in 1973, improvements were made to limit the dangers to drivers. It is now almost 20 years since the last F1 driver, Ayrton Senna, was killed in action. The documentary features interviews with Jackie Stewart, Mario Andretti, Niki Lauda, Lewis Hamilton, Michael Schumacher and many others.