BBC Earth

Episode 2 – Peru Ultra

Preview

In the second episode, endurance athlete Richard Parks takes on his second remarkable challenge in the Peruvian Amazon, to take part in a gruelling mega-distance running event called the Jungle Ultra.

He will need to muster up exceptional stamina to survive running over five marathons in five days, a total of 143 miles (230km), in the intense heat and across the brutal and unforgiving terrain of the Amazon jungle. Each stage is just short of a marathon distance before the final excruciating leg, aptly called The Long One.