MUMBAI: National Geographic Channels (NGC) has announced that actor Josh Brolin will narrate ?Untamed Americas? ? the four-hour high-definition miniseries event that reveals the grit and glory in the wilds of North America, Central America and South America.

Premiering globally later this year, ?Untamed Americas? marks the first US simulcast on all three National Geographic Channels: National Geographic Channel, Nat Geo Wild and recently launched Spanish-language network Nat Geo Mundo.

Narrated by Brolin in the US on NGC and Wild and internationally in English-speaking territories, each hour explores some of the greatest wildlife spectacles, delicate dances, instances of unbelievable endurance and against-the-odds survival in episodes dedicated to the continent?s Mountains, Deserts, Coasts and Forests.

Brolin said, "National Geographic is an iconic brand known for its storytelling, and I am thrilled to be a part of this project. This series is absolutely breathtaking, and really inspires my passion for the great outdoors."

The series producer Karen Bass said, "We could not have found a more perfect narrator for this series. Josh really brings to life what our crew captured ? the intimate, the epic and the dramatic stories of wildlife facing the extreme challenges of surviving in the Americas."

The ?Untamed Americas? team spent almost two years in the field, traveling thousands of miles from Alaska to Patagonia, to capture the extreme wildlife of the continent. To film the rare moments, Untamed Americas cameramen and producers rappelled down Peruvian cliffs in sea lion territory incurring bruised shins and battered heads; endured jellyfish stings in Monterey, Calif.; slipped down mud paths and stumbled through dark, dense underbrush in the Ecuadorean cloud forest; faced subzero temperatures (-22F) as well as extreme heat with 100 per cent humidity; maneuvered through freak out-of-season hurricanes; lost sleeping bags (and sleep!) in 80 mph winds in Chile; gasped for breath at 15,000 feet in the Altiplano of the Andes; and were even stalked by a puma.

The result: footage that captures previously undocumented animal behaviour and the gorgeous, wild landscapes of Untamed Americas.