There's a special place in the heart of the Amazon rainforest with ecosystems so unique and biodiversity so rich the UN have declared it a World Heritage Site. But the threats of climate change are looming. If nobody takes action this pristine wilderness could dry up in as little as 20 years and the effects would be devastating, not only here but across the planet. Now a team of four courageous people have devoted their lives to the protection of this corner of rainforest.