Watch HDToday. Welcome to the dawn of extreme skiing and riding as we know it. Watch skiers and riders like Stein Eriksen, Phil Mahre, Billy Kid, Craig Peterson, and plenty of others shape modern skiing into what it is today. Travel with them as they go coast to coast across the U.S., fly all the way over to France and Japan, and finally journey down under to New Zealand and ski head to head down the steep and deep.