National Geographic HD

Assassin Lee Harvey Oswald is shot while in police custody.

Take the ultimate guided tour onboard this global command center in the sky.

An in-depth look at Air Force One; the overhaul of the two presidential planes; exploring the cutting-edge technology.

Regain independence and enjoy greater mobility with the compact design and long-lasting battery of portable oxygen.

Join your hosts Kevin Cash & Cory Cady as we discuss the 250th Anniversary of America with the official "America 250" logo on a Silver American Eagle label. We are locking in orders for this iconic release but coins are limited! Don't miss out!

See how one company is changing people's lives by helping them put their tax problems to rest.

Meet the new Shark PowerDetect Upright Vacuum with features like DuoClean Detect Technology, self-cleaning brush roll and odor neutralizing and you will be cleaning faster, smarter and better!

See how a drug-free patch is helping people find relief-without medication.

Learn about the variety of Humana Medicare plans designed to fit people's needs, lifestyle, and budget.

Negotiating deadly snakes and monsoon rains, Hazen Audel joins an elite band of tribal hunters and stalk a wild pig required for a spiritualistic house building ceremony.

Hazen Audel takes on a trek through the deserts of northern Namibia; he delivers a sacred gift to a tribe who live in the barren dunes.

Hazen Audel ventures into the sun-scorched Australian outback, searching for a hidden freshwater oasis.

In a deep North American canyon, Hazen Audel faces lethal animals, vertical cliffs and impossible terrain on a deadly run; he must navigate mountainous terrain and plunging chasms with just the traditional sandals of the Raramuri for protection.

Survivalist Hazen Audel embarks on a personal mission to catch a huge fish in the waters of the remote volcanic island of Pongso no Tao in Taiwan.

Hazen Audel is on a grueling mission to locate a herd of caribou in the deadly frozen wilds of Canada's sub-Arctic boreal forest.

Frigid temperatures wreak havoc on Dawson City, putting the fire department in danger; an avalanche shuts down the Klondike Highway and a tow operator races to find a driver who has plunged off-road and into an icy river.

Multiple 911 calls push Dawson City to the brink as they battle to save a family home and a historic building, while snowstorms pummel Whitehorse, causing chaos and forcing a dangerous backcountry helicopter rescue mission.

As winter tightens its icy grip, the small, isolated community of West Dawson finds itself completely cut off from emergency services. Alone, Ray faces a string of dangerous solo vehicle retrieval missions on a storm-battered highway.

An avalanche risk forces a bombing mission above the Klondike Highway.

Harsh flying conditions threaten the search for a historic missing plane.

Devastating flash floods threaten Dawson City.

Conservation Officer Logan has a close call while investigating a case of poaching; an aggressive grizzly bear ransacks a remote trapper's cabin.

When a bear charges a group of remote researchers, a Conservation Officer deals with the potentially life-threatening situation, and Ray takes on a challenging recovery that bested two tow companies before him.

Alaskans must work day and night to ensure their survival.

Conservation Officer Logan has a close call while investigating a case of poaching; an aggressive grizzly bear ransacks a remote trapper's cabin.