A look at wildlife in the American West, including pumas; western diamondback rattlesnakes; bison; and golden eagles.

A look at ambush predators that use speed to capture their prey. Included: snakes; crocodiles.

The host tracks brown bears and polar bears.

The host studies electric eels in the Central Suriname Nature Preserve in South America.

Huge Humboldt squid, up to six feet long, are expanding into thousands of square miles of new territory, threatening commercial fisheries, and reportedly attacking divers! Yet we know almost nothing about them. Brady collaborates with researchers to undertake a high-risk mission to capture a squid unharmed, and attach National Geographics state-of-the-art Crittercam.

The host tracks brown bears in the Alaskan rain forest.

A large congregation of primitive sixgill sharks are observed off the coast of Seattle.

The host visits Suriname to study electric eels and hopefully identify a new species.