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.
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 Wild West, where coyotes confront a snow-covered Yellowstone, hundreds of rattlesnakes emerge, woodpeckers compete to stash food, bison clash on the Great Plains, and cranes assemble in immense numbers during their ancient migration.
Amazon rainforest footage shows giant otters hunting, caimans eating baby turtles, a harpy eagle chick's early life, and army ants revealing new behaviors in Earth's biggest rainforest.
In the Arctic, wolves and polar bears compete for food while hares evade lynx and walruses sing along the coast. Come summer, grouse dance, caribou migrate and salmon swim upstream. With Tom Hanks.
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 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.
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 and more.
