Catering to more than twenty million truckers, truck stops are bigger and better than ever. These mega-pit stops are essential to the trucks and truckers that haul eight billion tons of freight annually. Tour the world's largest truck stop that offers fuel, food, parking, private showers, a movie theater, a dentist office, and a barbershop. Look at how 18-wheelers can power up their rigs with a high tech parking lot hookup called IdleAire; complete with heat, air conditioning, a telephone line, a computer with high speed internet, and of course satellite TV. We'll also see how 30,000 gallon underground diesel storage tanks are manufactured. And we'll weigh and inspect a truck while it's barely slowing down. In an interview with Willie Nelson, we'll explore one of the most unique truck stops in the United States and the revolutionary fuel it sells: biodiesel.

As the end of week one comes to a close hunters are faced with new challenges. Troy makes a shocking discovery, a monster gator is feeding dangerously close to his home. To protect his family, he and his boys set out to do battle with the monster in a tiny boat and come face-to-face with disaster. R.J. and his son Jay Paul summon the powers of their ancestors in an ancient tribal ceremony to prepare for battle with a beast known as Big Foot. Liz and Kristie encounter something rarely seen on the swamp; a gator so bold, that he takes the bait in broad daylight right in front of them. When they attempt to haul the beast in, he breaks off the line and the battle is on! The Guist brothers find themselves in need of lumber, but they don't head to the home improvement store. Instead, they turn to the swamp, and an age-old technique of harvesting lumber as they go in search of sinker cypress.

Which is the best modern muscle car? Adam, Rutledge and Tanner fight it out on the way to a high speed attempt at a NASCAR track, and Rutledge takes Tanner into the Utah desert to prove how fast their new mustangs are in a relay race against horses.

The early pioneers and settlers crossed the Rockies in covered wagons, braving tough weather and harsh terrain. So how would modern day covered wagons cope with the same journey, carrying the same things and having to cross the same rivers and mountains? Rutledge, Adam and Tanner decide to find out, and set out to conquer the Rockies in soccer-mom vans.

Alaska--a land of extremes. Its size is staggering--nearly 600,000 square miles, or more than twice the size of Texas. Its vast distances, extreme weather, imposing landscape--all helped shape its history and the lives of those who come under its spell. Our 2-hour special heads to far-flung corners of the 49th State to hear compelling stories of life in the bush--from Russian expeditions in the 1700s to building of the Alcan Highway to the WWII Battle for the Aleutian Islands and 1959 statehood.

Larry travels to Alaska where he attempts to bust moose poachers, uncovers Alaskan greatness, and then drops in unannounced on Wasilla's most famous citizen and her family.

Larry heads down south to show us how the American redneck creates entertainment. He first puts his redneck cred on the line as he tries his hand at mud bogging--down and dirty drag racing at its finest. Larry then sees how good ol' boys who like to wreck stuff put their martial arts "breaking" skills to use as they attempt to tear down a whole house by hand! Finally, Larry meets up with Bubba Blackwell, the American daredevil who has brought the motorcycle stunt into the 21st century. How many full-sized semis is Bubba gonna try to jump??!!

There are essentially five cons that are the basis for every swindle since man walked upright. For example, today's Nigerian email scam is nothing more than a derivation of a Spanish Conquistador's bait and switch con that started around the year 1400. Paul Wilson, dubbed the "World's Greatest Con Man," and his team take viewers inside long and complicated schemes and even the micro-cons that have plagued unsuspecting people for hundreds, even thousands of years. Paul has successfully pulled more scams on real people than anyone in history, but he doesn't take their money. His goal is to expose these cons, hustles and schemes so that he can teach others how to avoid them.

Automotive aficionado Dale gets seriously cranked up over Mike's one-of-a-kind belly tank racer. But the negotiations could crash if the classic can't run leaving Mike out thousands of dollars. Freestyling in New Hampshire, Tommy's treasure-packed barn yields some incredible railroad relics. Mario loves his junk but says he's willing to negotiate, and after gambling on a very cool retro smoking toy, bundle-master Frank steps in to save the day for Mike. Bruce's jam-packed property is staggering and though he's reluctant to sell, Mike manages to pull the trigger on a rare folk art rifle.

Week 3 begins with challenger Katt Daddy determined to dethrone his biggest rival, the currently undefeated Catfish King Marion and Katt Daddy will do whatever it takes to make that happen. The competition heats up and all of the teams need to take bigger risks to bring in the biggest fish.

This week's Invitational coincides with another mudcatting competition so the lakes and rivers of Oklahoma are over-flowing with hundreds of amateur contestants who have flocked to the Sooner State. For the six teams entering into week four, finding big fish will be harder than ever before.

After sweeping the last four tournaments, Catfish King Marion is feeling confident but the other teams have out a target on his back and each of them are determined to take it all in week five. With the 100 degree plus heat to contend with, the mudcatters have their work cut out for them and for one team, the conditions prove to be too much.

Informational programming.

Informational programming.

Informational programming.

Informational programming.

Informational programming.

Informational programming.

Statistics prove it's damned hard to kill an enemy soldier on the battlefield. That's why the U.S. Marine Corps urges its best marksmen to become snipers--human machines, inhuman patience and precision. From distances up to 3 miles, tomorrow's Marines train to neutralize enemies with one shot from their rifles--a shot that can mean the difference between peaceful surrender and bloody assault. We journey from Vietnam to Africa and Eastern Europe to observe these snipers watching...waiting...firing.

25,000 B.C. In Europe, arctic glaciers reach as far south as London. Massive predators are on the prowl. Across the continent, two species of primitive man struggle to survive. The Neanderthals are natural hunters, built for brute strength and well-adapted to the cold. However, they lack the understanding of technology and ability to speak in abstract terms that our species has. The Cro-Magnon, Homo sapiens are smarter but more fragile. With exciting new research in anthropology, archaeology and genetics, follow these early humans through a season of survival.