Jay Leno hosts some of the biggest celebrities in the world.

Take a trip to Yellowknife, Canada to experience one of the most dangerous careers around. In unfathomably cold conditions, truck drivers haul equipment and supplies to miners in the Canadian tundra in the dead of winter on a 350-mile highway of ice.

Take a trip to Yellowknife, Canada to experience one of the most dangerous careers around. In unfathomably cold conditions, truck drivers haul equipment and supplies to miners in the Canadian tundra in the dead of winter on a 350-mile highway of ice.

Jay Leno hosts some of the biggest celebrities in the world.