Protecting the Amazon has become not just an environmental mission but a fight for the survival of an entire uncontacted human culture, so that if the land isn't saved, the Mashco Piro people themselves will cease to exist.

54:35forest where the trees have never been cut, growing since the dawn of time. Thousands of species can be on a single shihuahuaco tree, and it's Avatar on Earth. You can see the sweat come off your skin and rain down and then drink it out of the river, and you're part of the chemical physical reality there. It's one of the last places that's untouched. This changed everything because we realized that along with

55:02the butterflies and the monkeys and the jaguars and the trees and the ecosystem—there's also a human culture that will, in the next few years, cease to exist, that will be exterminated if we don't protect them. And when you look back at what happened to indigenous cultures all over the world over the past few centuries, that they've been wiped out, we collectively now, because we know this, have a chance to undo all

55:29the injustices of the past by at least doing one right, by saying these people want one thing: to just be left alone. Imagine if we just protected the river. And then it's not that they're this thing that's vanishing from reality, but they get to continue living that way. And if they want to come out and contact us, great, and if they want to continue living like this for 10,000 years, they

55:52can. And that's what we're working with now. It's become so much more important than just, you know, trying to protect the environment. It's like, no, we're trying to protect things like Yellowstone and Yosemite and the sequoias that occur nowhere else on Earth. You protect the things that are unique and special, the crown jewels, and in both a biological way and an anthropocentric way, this has now become a river with global historic significance because this story

56:26is going to play out in the next 18 months. - You're trying to save more and more rainforest. And the mission is clear because there's just this deep jungle... ...that's full of this incredible life. And now we know with uncontacted tribes, there's a lot of interests that don't care about the jungle they're pushing into... ...and want to cut it down, want to destroy it. And the mission is pretty clear.