The Extremists

Gabby Reese discovers the newest thing in personal water craft as she races down the Colorado river with "Waterworld" stuntman Larry Rippenkroger and jet ski champion Nicholas Rios. Mountain bike maniacs race 10,000 feet down Maui's Mount Haleakala. Sonny Garcia redefines big wave surfing off the undpreictable waters of the California coastline.