Following the perilous work of Air Zermatt, an alpine search and rescue team that operates on the peaks of Switzerland's Matterhorn mountain.

During a rescue, lead pilot Sam senses something wrong with the helicopter and must decide whether to land; a life-or-death situation in the Air Zermatt hangar tests the skill of medics.

When a major storm shuts operations down, an isolated hiker must find his own way out of a dire situation.

Technology has come a long way since the original Lama helicopter, and Air Zermatt has revolutionized mountain rescues by making journeys safer and more efficient.

During the peak winter season, adrenaline seekers from around the world descend upon the Swiss Valais Alps, creating a relentless cycle for Air Zermatt's crews who field up to 25 rescues a day.