On a remote island in the Pacific, Will Smith descends into the heart of an active volcano to investigate sounds beyond human hearing. Will discovers that everything on our planet creates its own unique sound-even if we can't always hear it.
Will Smith - whose curiosity and wonder is positively infectious - is guided by National Geographic Explorers traveling to different corners of the world to get up close and personal with the weirdest, most unusual, dangerous and thrilling spectacles of the planet.
Welcome to Earth - The Silent Roar Synopsis and Schedule