Rescuing stranded climbers with no coordinates is a daunting task.

Jason preps his helicopter for the world's highest landing spot.

Ryan battles the elements racing back to Lukla with sick climbers.

Ryan confronts an uninvited climber trying to hitch a ride at 17,500 feet.

Jason and Siddartha try to save climbers along a treacherous icefall.

Ryan struggles to locate a woman suffering from severe abdominal pains.

Stranded deep in the Amazon, Mykel and Ruth fight to survive the searing heat, poisonous reptiles, and a jungle that conceals its most deadly threats - and the way out.

The Hawkes find themselves at the bottom of the food chain in Botswana.

Mykel and Ruth get blown off course while sky diving, and find themselves knee deep in Louisiana gator country, far from help and far too close to a murders' row of hungry reptiles.

The Hawkes battle hypothermia and dehydration on the coastline of Tasmania.

The Hawkes' adventure turns deadly in the merciless Mexican desert.

The Hawkes find themselves in the frigid waters of the Colorado River.

The Hawkes find themselves on the rat-infested desert island of Aitutaki.

The Hawkes break down in the remote wilderness of Alaska.

The Hawkes find themselves off the beaten path in the Smokey Mountains.

The Hawkes are on the menu for hungry reptiles in a steaming jungle hell.