SPRINT

The long-standing rivalry heats up between the United States and Jamaica as ShaCarri Richardson and Shericka Jackson cope with the pressures of fame.

Top women sprinters from Jamaica and the United States push through setbacks, coaching changes and intense pressure to earn spots on their national teams.

An accident en route to the mens 200-meter race rattles both the runners and fans. In the womens final, Shericka Jackson targets Flo-Jos world record.

At the Jamaican Trials, up-and-coming talent and veteran superstars shoulder the nations expectations as they battle it out to clinch an Olympic berth.

A tight finish in the mens 100 ends in a historic win. Injury sidelines a veteran Olympian, and a clutch rally in the womens 4x100 relay secures gold.