National Geographic HD

The secret drug life of Silicon Valley, where cocaine is the drug of choice; enhanced.

The Austin music scene veils a darker revelry: a highly competitive drug trade.

Tales of dealers, police and snitches in Minnesota's Twin Cities; enhanced.

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 spots are limited! Don't miss out!

Every 5 seconds there's a victim of identity theft. LifeLock helps alert you, restore your identity, and reimburse lost funds-leading the way in protecting families every day.

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

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

Hazen Audel descends sheer slopes into the Great Rift Valley in search of elephants.

Hazen Audel battles Lake Baringo's wild waters on an epic wildlife mission.

Hazen Audel hits Hell's Gate Gorge in search of rare black rhinos while local foragers provide him with hints on how to locate the endangered species.

Hazen Audel is on a mission to reach a legendary coastal bat colony.

Hazen Audel battles through the Serengeti to find the Great Migration of wildebeest.

Killer wolves turn a quiet duck hunt deadly for Tim Curly Leach.

Breanna's mission for deer leads her to some unsettling signs.

Breanna and Oliver go shrimping, while Sam and Curly net for salmon.

Matt and Carl prepare for adventure; Oliver chases after deer.

The search for crab takes residents into a dangerous new environment.

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.

Alaskans face challenges and failures every day, but must persevere to survive.

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