Antoine Montant, Francois Bon, and Hervé Cerutti aspire to integrate climbing, flying, and skiing in the sport of Speed Riding. The athletes challenge the mountains of the French Alps near Chamonix. Antoine, named the fastest speed rider, encounters an avalanche. The three athletes attempt to conquer one of the most famous and dangerous walls in the Alps. Antoine then takes on a riskier line and tempts his fate.

Athletes seek extreme landscapes in search of a "Perfect Line." Skiers scope out steep mountain faces while kayakers see monumental waterfalls, bikers dense forests, and base jumpers an abundant stretch of sky.

Professional skiers James Heim, Mark Abma and Eric "Hoji" Hjorleifson go ski touring in search of big mountain backcountry powder they call "Epic Pow". With bare necessities the athletes survive in huts of the British Columbia mountains. They ski a variety of terrain including pillow features and spine zones.

Professional freeskiers Eric Hjorleifson, James Heim and Ingrid Backstrom seek a vast isolated landscape just northwest of Whistler, BC. The Meager Group offers insane possibilities with amazing spine lines. The team sets up a base camp near the hot springs. They wait out the weather hoping for a perfect day. Eric experiences the extremes of glory and pain in the line of his life.

Extreme skiing is defined with bigger lines, bigger mountains and steeper faces. They say, "You fall, you die." Professional skiers Chris Davenport and Stian Hagen sit down with the pioneer of extreme skiing Sylvain Saudan. The athletes share the truth they gain by using big mountains to peer into the depths of themselves. Chris and Stian ski the remote peaks of Alaska getting too close to "the red line.

Haines, Alaska for professional skiers is considered The Dream Trip. Big mountain skiers Daron Rahlves and Henrik Windstedt challenge their skills when they decide to run a line together. Ingrid Backstrom, JT Holmes and Shane McConkey face dangerous weather when they arrive in Haines. Mark Abma and Eric Hjorleifson lead the young talent of Sean Petit on a first time heli trip.

JT Holmes and Shane McConkey share the dream of combining skiing and base-jumping. They find themselves in Bella Coola, BC where the primary objective is to go where no one has ever considered by skiing the "closeout line." They then take on Europe's most iconic peak, the Eiger. In the mountains of western Norway they ready themselves for a stunt that had never been attempted before, a wingsuit ski base.

Steve Fisher leads an all-star team of kayakers as they venture into unfamiliar territory. They first travel to remote Iceland and then to exotic Zambia. The team faces challenging rapids and falls between two of the most dangerous sites on earth.

Three teams of world-class riders demonstrate new extremes of mountain biking. Industrious mountain bikers build obstacles through dense forests of British Columbia. Pro dirt jumps challenge the riders to new heights in New Zealand. Urban Free Riding brings on a new style when the riders find street lines in Amsterdam and Germany.

Professional mountain bikers take a road trip through the diverse landscapes of Israel. Fabien Barel gets a rush of adrenaline on a steep line through unexpected terrain. Cedric Gracia finds an ultimate road gap on Mount Sodom.