A man's struggle against himself and against time. Kenyan runner Eliud Kipchoge dreams of completing a marathon distance of less than two hours. An achievement that is considered unattainable for a human being. Here we follow him as he prepares to break the impossible record. Is he able to break the magical two-hour limit and write history?

After six months of scientifically advanced training, three of the world's most elite distance runners set out to break the two-hour marathon barrier. These pioneers go on a global trek to defy the unthinkable and break the two-hour feat, from testing in wind tunnels and running qiwan.cc labs in the United States, to balancing training with their day-to- day lives in eastern Africa, to the final heart-pounding race in Italy.