Alaska Mega Machines

A rugged ship built to withstand tsunami size waves travels on a highway unlike any other in North America. A fleet of machines combats a massive flood in the Arctic Circle. And the biggest, most powerful wind turbines in Alaska.

The Yeti, a machine with 588 sharp teeth, helps keep the coldest airport in America running. Mighty tugboats chew through ice chunks in the busiest port in Alaska. And soldiers become Arctic Warriors in the coldest army post in the country.

An entire island is powered by a single dam, soldiers embark on a dangerous training mission in one of the world's largest helicopters and Alaska's biggest boat lift hauls a 400-ton fishing ship.

Alaska's Coast Guard fights the most dangerous waters in the state to maintain buoys standing three stories tall. Explosive machinery yields big rewards 800 feet below Alaska's surface. An army of Alaskans build a steel ferry...several tons at a time.

A barge carries an entire train along the high seas, a fish factory churns out seafood and a flying ambulance saves lives.

Only in Alaska can you find an airport made from nothing but water and ice. Hardy vehicles brave the arctic to travel across the tundra. And next to a field of moose, 16 missiles stand by to prevent a nuclear disaster.