Pilots embark on two white-knuckle flights involving something explosive.

Ariel's flying lessons end in disaster after a hard day of work.

Ariel attempts to learn the family business as Halloween takes over Alaska.

Luke takes on a daring rescue as winter's darkness overtakes Unalakleet.

Turbulence and angry passengers make for a long flight through Nulato.

Two pilots push their limits to land vital vaccines two miles from Russia on Alaska's most treacherous runway. In Unalakleet, Ariel Tweto takes to the skies once again and proves that she still has a lot to learn.

Luke delivers the first-ever ATM with a planeload of cash to Wainwright.

The team gets busy as Alaska recovers from two months of darkness.

The Iditarod dog sled race brings big business to Era Alaska. Ferno, Ayla and Ariel Tweto run with the reindeer in Anchorage. A pilot battles malfunctioning trim control over the frozen Norton Sound and a tsunami warning threatens the entire coast.

Dangerous conditions and a winter storm threaten to shut down Era Alaska.

A group of world-renowned rock climbers arrive in Unk & Jim must fly them deep into the remote Brooks Range. Luke flies a Barrow whaling crew over the sea ice in search of a site to hunt the Bowhead whale so that they can feed their hungry community.

A pilot attempts to set the world speed record to the North Pole.

Era Alaska provides aid to a village devastated by heavy flooding. Two pilots get lost in a sea of fog off the Russian coast while trying to deliver desperately needed ammunition. In Anchorage, Jim’s prized Cessna 180 goes up in smoke.

Ponts’ old skate crew arrives to build a skate park for local kids on Unk’s newly paved roads. Ariel takes to the skies in a new plane with dangerous results and lead Pilot Erik Snuggerud battles heavy turbulence with a very special delivery.

John and Justin fly 1,600 pounds of propane to a secluded fishing village.

Sarah faces a new set of dangers while taking her first flight in a 208.