Trama

Mark Beaumont and James Lowsley-Williams are in search of the world's longest descent. A search which has taken them to the foothills of the Ojos del Salado in Chile, the world's highest active volcano.

It's a crazy plan: to ride down the world's longest descent from the roof of the Andes at 6890m to the Pacific coast of Chile - 300Km in all. But to even get to the start line, James Lowsley-Williams and Mark Beaumont need to scale the world's highest active volcano, Ojos del Salado with their bikes strapped to their backs. To make the start line they must acclimatise to the crushing altitude and the barren landscape before their attempt begins. Mark and James have nailed several epic rides in the past, but this latest attempt moves them into a different league, with extreme altitude and barren inhospitable landscapes challenging them before they can even begin.

How far can you ride a bike downhill? To find out GCN PresenterJames Lowsley-Williams has teamed up with adventurer Mark Beaumont for a challenge of epic proportions in the high Andes of Chile. Their goal is to scale the highest active volcano in the world, the Ojos del Salado, with bikes strapped to their backs, before riding the longest descent in the world....300 KM to the Pacific coast. With a depleted team, weather delays and pressure from home to return by Christmas, can they conquer the immense challenge ahead of them? It's all downhill from here - right?