Usain Bolt is the fastest man on the planet and a sportsman like no other. But what makes him so much faster than any other man in the history of the human race?

Who better to investigate than athletics legend Michael Johnson, the man Bolt has dethroned as the world's fastest human ever.

Johnson travels to Jamaica to meet Bolt and explore every element of the 23-year-old's story from the suspicions of drug taking and the burden of single-handedly carrying athletics to how Bolt is dealing with the constant worldwide media attention. Show less