Plot Synopsis

Hosted, narrated and executive produced by survivalist and adventurer Bear Grylls, HOSTILE PLANET is a six-part series that draws attention to the most extraordinary -- almost supernatural -- accounts of animals that have adapted to the cruelest evolutionary curveballs. This series zooms in on the world's most extreme environments to reveal the animal kingdom's most epic stories of survival on this fast and continuously changing planet. Each one-hour episode spotlights a unique environment -- mountains, oceans, grasslands, jungles, deserts and polar -- to navigate the brutal conditions endured by some of the most complex, unrelenting and awe-inspiring species on the planet. Facing an overwhelming host of challenges including punishing weather, an intense competition for resources and a constant predator-vs.-prey conflict, each animal's mission is simple: adapt or die. The series opener, "Mountains," highlights the highest mountains on Earth that are home to snow leopards, golden eagles, mountain goats, barnacle goslings, and gelada monkeys. But only the toughest animals can endure the extreme weather, scarce food supplies, and limited oxygen on these peaks.