Era digs deep to survive a brutal Alaskan winter. Ariel joins in on a desperate search for her missing friend while Sarah Fraher attempts a difficult landing to aid a pilot stranded mid-runway. Finally, Ponts attempts an emergency medical drop over the isolated Kavik camp.
Alaska’s harshest winter in years wreaks havoc on Era’s fleet. Sarah Fraher’s aircraft door opens mid-flight, Doug’s brakes freeze on an icy runway while carrying explosive chemicals and Jim attempts a risky landing atop the frozen Anvik River.
Villagers in Wainright lose their water supply due to the Arctic cold. Solar flares leave Ponts and Ben in harm's way and in Unalakleet, a criminal is on the loose and the Twetos are on edge.
As the Iditarod dog sled race fires up in Anchorage, pilot Doug Stewart tests his limits landing on a runway that is melting into the ocean. Meanwhile, fellow pilot John Kapsner races to locate two snow machiners that are lost overnight in the Alaskan Bush.
Pilot Erik Snuggerud is plagued by mechanical issues In Bethel while pilots Doug Stewart and John Rende battle to keep their plane from careening off an icy runway on Alaska’s North Slope. Later, Ariel receives a surprise visitor In Unalakleet.
Ariel disappears from radio contact In the skies above western Alaska, putting emergency services on high alert. Then, pilot Erik Snuggerud battles to touch down on a dangerously narrow runway over the remote village of Hooper Bay.
Jim makes an impossible landing in Unk while pilot Sarah Fraher battles strong headwinds attempting to deliver 2,000 pounds of fuel to the research station. Later, pilot Ben Pederson braves 50 mph winds to retrieve an elusive priest for Easter service.
After 30 years of running Era Alaska, Jim Tweto sets his eye on a new path. Doug loses all avionics while flying over the North Slope and Ariel comes face-to-face with the FAA in the last step of getting her pilot’s license.