Ahead of the London 2017 World Championships, four-time Olympic champion Michael Johnson looks back to London 2012 and the subsequent journey for three of the golden heroes from Super Saturday - Sir Mo Farah, Dame Jessica Ennis-Hill and Greg Rutherford.

Michael visits Jess in Sheffield to hear her memories of what has been described as the greatest day in British sporting history, as well as her incredible journey afterwards, which includes giving birth to her first child Reggie and going on to win gold at the World Championships just 13 months later.

Greg and his family then welcome Michael to Arizona, and they discuss the ups and downs of his career over the last five years. Mo charts his extraordinary non-stop success on the track while remembering the sacrifices he made off it.

The documentary explores what it takes to be a world-class athlete and the challenges of staying at the top. Through the unique stories of Jess, Mo and Greg, Michael discovers what is so captivating about athletics, what it takes to reach and perform at this level within the sport and what the next generation of stars will face as they prepare for the first World Championships to be held in the UK. Show less