Whether it's cheetahs, gazelles, or grizzly bears, National Geographic is famous for capturing life-and-death moments in the wilderness. Now they turn their lens to a whole new species of animal: human beings. Extreme snowboarders, surfers, and skiers are among the athletes who defy death and push their limits in this jaw-dropping program full of unbelievable footage.

Blu-ray Disc Features:

Full Frame - 1.33