Bobby Bones—who's afraid of heights—explains why he tried jobs like rope work over the Grand Canyon for his National Geographic show "Breaking Bobby Bones."
"My leg is shaking like crazy," Bobby says in the clip that he says is difficult to watch back. "I'm a lot scared." But he did it for the underdogs, he says.
"When I created the show," Bobby explains, "I really wanted to focus on people who have done some really great things—meaning they've had setbacks in their lives and they're now showing what they can do even beyond that."