The Hawkes try to escape a volcano on the abandoned island of Montserrat.

The Hawkes turn trash into treasure while shipwrecked on a deserted island.

The Hawkes search for water in California's mountain high desert.

The Hawke's avoid a persistent black bear while battling a hypothermia.

The Hawkes find themselves stranded in a glacier in the Alaskan wilderness.

Myke gets help from Daniel Boone while in the Kentucky wilderness.

The Hawkes' lives are threatened while escaping from a Croatian cave.

The Hawkes struggle to come down a mountain in the Scottish Highlands.

Climbers arrive at base camp and quickly learn the dangers of the mountain.

Hundreds of climbers at Advanced Base Camp prepare for the climb.

Russell splits the expedition in two for the five-day summit assault.

The teams race against the clock as they run out of time and air.

Some climbers reach the top, but then get caught in a line to descend.

Struggling climbers suffer from "summit fever" and refuse to turn back.

Some climbers aren't quite ready for the rigors of Everest.

The team has five hours to climb 2,000 feet to the first high camp.