The untamed wilderness of Alaska can be as dangerous as it is exciting. Though weather is often an obstacle, it's not the only danger. So Don Lee teaches his student the finer points of gunplay and how to shoot and kill a charging bear.

Keller Wattum is the "eye in the sky" for a fishing vessel in Kodiak Island's annual herring run. And in Juneau, chopper pilot Dustin Carroll is responsible for getting technicians to the cell towers to find a problem - 4,000 ft. up in the mountains.

In Juneau, Dustin Carroll and Jag Garrard are flying support for the local power company. They must reconfigure a nearly 50-mile chain of power lines running through the mountains that has been damaged by avalanches in recent years.