This season opens with a meltdown when the C-46 suffers a major gear collapse on the runway, sending the entire Buffalo crew scrambling. As the coldest winter in decades grips Yellowknife, every pilot and mechanic in the company faces the huge challenge of keeping the aging fleet in the air. Buffalo's livelihood falls heavily on Joe's Lockheed Electra until a freak accident threatens to ground the plane. Hearing of an Electra up for sale, Joe heads on an urgent mission across the Atlantic. As the record-cold winter stretches on, a young hotshot pilot journeys all the way from Australia to earn a place in Buffalo's DC-3. And a longtime member of the Buffalo family leaves for good.

Plus, there are bold new adventures for the McBryan clan. Buffalo Joe resurrects and races an antique 1940s "snowplane" on Great Slave Lake, pilots a helicopter for the first time and flies along with Canada's iconic Snowbirds. Mikey takes his first flying lessons, trains for Arctic survival with the military, leads a hockey team against an NHL squad and connects with astronaut Chris Hadfield aboard the International Space Station.