Spanning the western length of Colombia, the Chocó region is thought to be one of most biodiverse places on the planet. When the Andes Mountains rose around 60 million years ago they isolated this wild coast creating a haven for evolution. It is the wettest place on earth, on average 13m of water falls every year. Combined with the varied topography of the Western Andes and the year round tropical heat, it is the perfect environment for species to adapt and evolve. But whilst its tangled jungles thrive its pristine shores and tropical islands are also visited by a host of marine animals every year. The Chocó is the only part of South America to be bathed by both the Pacific and Atlantic Oceans. And though legendary for its biological richness, the Chocó remains largely unexplored… With countless species still to be discovered.

In the middle of Colombia, lies an ancient, unique and little explored outcrop of sandstone; the Serrania de la Macarena. It forms part of the country's first ever national park - made up of lush jungle, shrubland and savannah, isolated peaks, winding rivers and spectacular waterfalls – where more than 15 million specimens were collected during early studies of the area. Called the ‘treasure of the world’, scientists believe it is a hugely important bank of biological diversity. This film explores how the wildlife and landscape of the Serrania de la Macarena has been uniquely shaped by the Andes, Orinoco basin and Amazon jungle which surround it and how, only now, scientists are beginning to uncover the treasures it hides.

Chiribiquete is an unknown world, hidden deep within Colombia’s Amazon. Pre-historic towers, waterfalls and deep canyons lie surrounded by rivers, lakes and rainforests bursting with life. Scientists have only guessed at what else lies beneath this impenetrable pristine jungle - until now. Biologist Blanca Huertas from England’s Natural History Museum, and Colombian-born nature photographer Francisco Forero, head deep into the heart of nowhere. For two days, Chiribiquete becomes their temporary home. In their search for new animal species and evidence of ancient people, they face incredible highs, along with a few unexpected lows.