Narrator Tom Hanks and the show's crew share a behind-the-scenes look at the hard work and dedication it took to capture the series.

Patagonia, a wilderness at the far south of the Americas. Pumas hunt in snowy mountains, rockhopper penguins brave the waves, giant stag beetles climb trees, orcas learn to hunt and elephant seals fight for dominance on the coast.

The West Coast, where wolves scour shorelines, sea otters dive through surf, blue whales race and roll in a rare display and octopuses make the ultimate sacrifice for their young. High in the Redwoods, salamanders leap to survive. With Tom Hanks.

The West Coast, where wolves scour shorelines, sea otters dive through surf, blue whales race and roll in a rare display and octopuses make the ultimate sacrifice for their young. High in the Redwoods, salamanders leap to survive.

The Caribbean, where sailfish hunt with speed, sperm whales dive for squid and millions of red crabs migrate to the sea; hummingbirds defend territories post-hurricane, and on nearby islands, capuchin monkeys use tools to survive.

The Caribbean, where sailfish hunt with speed, sperm whales dive for squid and millions of red crabs migrate to the sea. Hummingbirds defend territories post-hurricane, and on nearby islands, capuchin monkeys use tools to survive.

The Andes, Earth's longest mountain range. Baby bears make treacherous descents, rare hummingbirds compete for mates, frogs freeze and revive, and lizards battle for territory - all in a land of extremes, from glaciers to deserts. With Tom Hanks.

The Andes, Earth's longest mountain range. Baby bears make treacherous descents, rare hummingbirds compete for mates, frogs freeze and revive, and lizards battle for territory - all in a land of extremes, from glaciers to deserts. 

The Gulf Coast, where swamps and wetlands shelter black bears and alligators. Manatees gather in freshwater springs, burrowing owls look for love in the suburbs and a rare ocelot raises her kittens in Texas' thornscrub. With Tom Hanks.

The Frozen North, where wolves and polar bears vie for food, hares outsmart lynx and walrus sing on rocky shores. As summer arrives, grouse perform mating dances, caribou migrate vast distances and salmon race upstream to survive.

The Amazon, the largest rainforest on Earth; drone footage captures giant otters hunting together while black caimans prey on newly hatched turtles; a harpy eagle chick's first days in the canopy and army ants on the move reveal new behaviors.

The Wild West, where coyotes face a snowbound Yellowstone, rattlesnakes emerge in the hundreds, woodpeckers compete to store food, bison battle on the Great Plains and cranes gather in vast numbers on their age-old migration.

 

Mexico, where deserts meet tropics; see new footage of fledgling pygmy owls, orca hunting, new species in flooded caves and orchid bees filmed in incredible detail -- all revealing the hidden lives of unique wildlife.

The Atlantic Coast, where wild horses battle, bald eagles chase ospreys and sharks protect fish; raccoons navigate city life, black bears search for food in ancient forests and a 130-year-old oak tree prepares for winter's arrival.