We'll take you to Colorado, and one of the most breathtaking places you've probably never heard of. More than 30 years after Mt. St. Helens blew, researchers witness an amazing rebirth. High fashion took a huge toll on America's wading birds that have now recovered to face new threats. Loggers and environmentalists reach a "timber truce" that seems to be working. And moose, bears and elk are just not the same up close as they are on TV; what's the National Park Service doing to keep humans and wildlife superstars at a safe distance?