Be it foxes on city streets or wolves on the tundra, canines rely on sharp senses, athleticism and fierce determination to punch above their weight. But the real secret of their success is much more surprising. It's a story of their intimate side. It's what makes every dog, from pet pooch to wild dogs, one of the family.

In changing seas and oceans, cephalopods like the cuttlefish and the giant Pacific octopus must rely on their remarkable intelligence to survive. Their alien appearance comes with astonishing resources, independence, and invention. And there's still so much to learn about these rarely seen legends of the deep.

Follow Will Smith on an extraordinary adventure around the world to explore Earth’s greatest wonders and reveal its most hidden secrets. Throughout the six-part series produced by filmmaker Darren Aronofsky, Will is guided by elite explorers on an awe-inspiring journey, getting up close and personal with some of the most thrilling spectacles on the planet — from volcanoes that roar in silence to deserts that move beyond our perception to animal swarms with minds of their own. Combining breathtaking cinematography with Will's boundless curiosity and enthusiasm, the blockbuster series is an exciting, multisensory ride through Earth’s most mind-bending portals.
In the first episode, Will Smith enters a live volcano and discovers a mysterious world of sound.

In the second episode, Will Smith descends 3,300 feet to the bottom of the ocean in a deep-water submersible, where even fewer people have gone than outer space. Along the way down, Will and explorer Diva Amon investigate how colour is used in the natural world and the role of bioluminescence. In the oceans, nearly 80 percent of animals use bioluminescence in some way, possibly the most common form of communication on the planet.

Will Smith discovers hidden worlds of fast and slow in the Earth's oldest desert. Worlds where things go so fast or so slow we don't even know they're happening. This hidden world of speed is everywhere, even 80 feet underwater. Hundreds of tiny anemones, anchored to the rocks, but film them patiently, then speed it up, and this miniature world comes to life. A lizard's tongue is one of the fastest movements in the entire animal kingdom. An orca creates a shock wave by slapping her tail and that pulse can travel through the water at more than a thousand miles an hour. to stuns the herrings she hunts.

Filmed across six continents, this docuseries uses cutting-edge camera technology to capture animal's nocturnal lives revealing new behaviours filmed in full color like never before. In the first episode, we will see how after dark on Kenya's Maasai Mara grasslands, a lioness won't rest until she finds the young cubs she's lost.