

A wolverine overcomes first-time flyer's nerves to travel to a new home. A helicopter pilot hunts for a showstopping ice cave. An 80-year-old cargo plane flies into the Arctic, and a wall of arctic fog threatens the airport wit.

Soar over the frozen Bering Sea as a heavy-hauling helicopter makes its way to a tiny island just 2.4 miles from Russia; prepare for a medevac mission with the Arctic Angels and listen in as a veteran bush pilot tests his grandson's flying skills.

Race to resupply farmers after Mount Spurr starts to rumble; the Anchorage International operations team handles two emergency landings; answering the call when a family asks for help getting to a vital school basketball game.

Climbers landing on a glacier at the foot of Mount Denali follow in the footsteps of aviation pioneers; a swarm of 600,000 bees threatens the plane's structural integrity and veterinarians battling a rabies epidemic go up again.

Father-son aviators battle turbulence to refuel a remote mine, bush pilots fight an aerial jam to reach Alaska's biggest sled race, and the Coastguard turn a C-130 into a bomber to drop supplies on an isolated beach.

NASA's 3D-printed Mars habitat rehearses human life on the red planet. Seoul's historic city hall gains a 13-story glass wave. And in Dallas, 68,000 square feet of concrete galleries balance on legs that want to splay open under.

Lord Foster's five-winged steel towers cool Abu Dhabi's national museum naturally; Robots 3D-print a steel bridge in Amsterdam & a concrete tower in Switzerland; and in Sydney, engineers pump out the harbour to build a fish market.

When a Bulgarian airliner is taken over by violent hijackers, the crew and authorities on the ground devise a daring plan to save the airliner.