With its thousands of enthusiasts, amateur and professional, boxing remains one of the sports with the most participants worldwide. Often condemned, at times prohibited, it remains an enigma for its detractors. It serves as a point of convergence for diverse passions, with its fans sharing one thing in common: the desire to see two men confront each other in the ring. Boxing forces us to confront our most basic urge, the desire to see who will prevail over the other, who will land the knockout punch. Boxing is also a highly complex spectacle, a sport with strict rules the boxer must adhere to. A sport that demands sacrifice and draconian training, while offering tomorrows that often prove less than glorious. A sport in which a colourful cast of characters with contrasting motives and roles jostle one another: trainers, managers, doctors, fans, journalists and the jet set. Over the course of this five-hour documentary series, television viewers will see how and why men continue to box.