Alaska Mega Machines - Episode Guide

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

The Yeti, a machine with 588 sharp teeth, helps keep an airport running. Tugboats break the ice in an Alaskan port. Soldiers stationed at the coldest army post in the US.

Alaskan engineers build a massive dam to power an entire town; the world's largest helicopters; Alaska's largest boat lift hauls a 400-ton fishing ship in high winds.

Alaska's Coast Guard fights dangerous waters to maintain buoys; machinery finds big rewards 800 feet below Alaska's surface; Alaskans build a steel ferry.

A barge carries an entire train along Alaska's high seas; a flying ambulance saves lives at 14,000 feet; 16 missiles stand by to prevent a nuclear disaster.

An airport made from nothing but water and ice; an Alaskan fish factory churns out millions of pounds of seafood a day; hardy vehicles brave the arctic to travel across the tundra.