Toxic traffic is everywhere! An average of 800,000 shipments of hazardous materials hit our highways and railways daily. From Wild West wooden crates filled with explosives to HAZMAT containers of nuclear waste, we shadow dangerous cargo. We ride shotgun on a hazardous material shipment that's tracked by satellites; hunt down the hush-hush "ghost fleet"--trucks carrying classified government materials; and board a Con-Air flight moving another kind of nasty stuff--dangerous felons!

Join us for an exploration of the technological innovations that have made extreme sports a reality. The world's best extreme athletes, designers, manufacturers, and engineers explain and demonstrate why the gadgets, gear, and technology of these sports have captured the public's imagination and revolutionized the sporting industry. Sports covered include surfing, skateboarding, snowboarding, in-line skating, street luge, wakeboarding, sport climbing, BMX biking, and sky surfing.

Join us for another look at big machines. At NASA's Ames Research Center, we visit the world's biggest wind tunnel, part of the National Full-Scale Aerodynamics Complex, and one of the biggest and most complex flight simulators, NASA's Vertical Motion Simulator, or VMS. At the Joy Mining Machinery plant in Franklin, Pennsylvania, giant machine tools form, cut, and measure the enormous individual parts that make up a Continuous Miner, the biggest underground mining machine in the world. But big machines aren't limited to science and commerce. Ride with us on the biggest observation wheel in the world, the London Eye, which stands 443 feet high and provides an incredible view of London. And we take a look at IMAX technology. The film, cameras, projectors, and theater screens are the largest in the world. Finally, we take a ride on every lawn tender's dream machine--the Claas Cougar, the world's biggest lawnmower.

Meet crime fighters who take on fiery killers. In Houston, visit the site of a suspicious fire with Fire Marshall Lalo Torres as he turns ashes into evidence. Former A.T.F. head Richard Garner explains motives behind the recent church fires. And at the California Criminalists Institute, John DeHaan trains special arson dogs.

Any fire raging out of control is a hazard, but when compounded with obstacles of extreme conditions, such as an oil well blowout or acres of forest ablaze, firefighters face new elements of danger. Meet a WWII London firefighter, "Hell Fighters" who squelch oil well infernos, and smokejumpers who parachute into forest fires.

It strikes without warning and kills in an instant. We fear its might even as we use it to save a life.

Witness some mind-blowing feats of strength starting with the world's most powerful elevators--one lifts fighter jets, the other lifts a giant stage filled with acrobats. Discover the world's strongest tire and the monster mine machine it rolls with. Take a 35-foot drop on the world's strongest mountain bike. See the world's strongest land transport vehicle that carries the Space Shuttle. Finally mix some drinks or chop a telephone into dust with the biggest and strongest home blender you've ever seen.

It's time to slice and dice! Take a cutting-edge look at the most amazing blades in the world, from the legendary sword of the samurai warrior with an edge sharp enough to sever a man's arm in a single swipe, to industrial shredder blades capable of gobbling anything from a sofa to a fridge, to the precision slicing power of lasers and plasma.

Toxic traffic is everywhere! An average of 800,000 shipments of hazardous materials hit our highways and railways daily. From Wild West wooden crates filled with explosives to HAZMAT containers of nuclear waste, we shadow dangerous cargo. We ride shotgun on a hazardous material shipment that's tracked by satellites; hunt down the hush-hush "ghost fleet"--trucks carrying classified government materials; and board a Con-Air flight moving another kind of nasty stuff--dangerous felons!

Join us for an exploration of the technological innovations that have made extreme sports a reality. The world's best extreme athletes, designers, manufacturers, and engineers explain and demonstrate why the gadgets, gear, and technology of these sports have captured the public's imagination and revolutionized the sporting industry. Sports covered include surfing, skateboarding, snowboarding, in-line skating, street luge, wakeboarding, sport climbing, BMX biking, and sky surfing.

Join us for another look at big machines. At NASA's Ames Research Center, we visit the world's biggest wind tunnel, part of the National Full-Scale Aerodynamics Complex, and one of the biggest and most complex flight simulators, NASA's Vertical Motion Simulator, or VMS. At the Joy Mining Machinery plant in Franklin, Pennsylvania, giant machine tools form, cut, and measure the enormous individual parts that make up a Continuous Miner, the biggest underground mining machine in the world. But big machines aren't limited to science and commerce. Ride with us on the biggest observation wheel in the world, the London Eye, which stands 443 feet high and provides an incredible view of London. And we take a look at IMAX technology. The film, cameras, projectors, and theater screens are the largest in the world. Finally, we take a ride on every lawn tender's dream machine--the Claas Cougar, the world's biggest lawnmower.

Meet crime fighters who take on fiery killers. In Houston, visit the site of a suspicious fire with Fire Marshall Lalo Torres as he turns ashes into evidence. Former A.T.F. head Richard Garner explains motives behind the recent church fires. And at the California Criminalists Institute, John DeHaan trains special arson dogs.

Any fire raging out of control is a hazard, but when compounded with obstacles of extreme conditions, such as an oil well blowout or acres of forest ablaze, firefighters face new elements of danger. Meet a WWII London firefighter, "Hell Fighters" who squelch oil well infernos, and smokejumpers who parachute into forest fires.

It strikes without warning and kills in an instant. We fear its might even as we use it to save a life.

Witness some mind-blowing feats of strength starting with the world's most powerful elevators--one lifts fighter jets, the other lifts a giant stage filled with acrobats. Discover the world's strongest tire and the monster mine machine it rolls with. Take a 35-foot drop on the world's strongest mountain bike. See the world's strongest land transport vehicle that carries the Space Shuttle. Finally mix some drinks or chop a telephone into dust with the biggest and strongest home blender you've ever seen.

It's time to slice and dice! Take a cutting-edge look at the most amazing blades in the world, from the legendary sword of the samurai warrior with an edge sharp enough to sever a man's arm in a single swipe, to industrial shredder blades capable of gobbling anything from a sofa to a fridge, to the precision slicing power of lasers and plasma.

Toxic traffic is everywhere! An average of 800,000 shipments of hazardous materials hit our highways and railways daily. From Wild West wooden crates filled with explosives to HAZMAT containers of nuclear waste, we shadow dangerous cargo. We ride shotgun on a hazardous material shipment that's tracked by satellites; hunt down the hush-hush "ghost fleet"--trucks carrying classified government materials; and board a Con-Air flight moving another kind of nasty stuff--dangerous felons!

Join us for an exploration of the technological innovations that have made extreme sports a reality. The world's best extreme athletes, designers, manufacturers, and engineers explain and demonstrate why the gadgets, gear, and technology of these sports have captured the public's imagination and revolutionized the sporting industry. Sports covered include surfing, skateboarding, snowboarding, in-line skating, street luge, wakeboarding, sport climbing, BMX biking, and sky surfing.

Join us for another look at big machines. At NASA's Ames Research Center, we visit the world's biggest wind tunnel, part of the National Full-Scale Aerodynamics Complex, and one of the biggest and most complex flight simulators, NASA's Vertical Motion Simulator, or VMS. At the Joy Mining Machinery plant in Franklin, Pennsylvania, giant machine tools form, cut, and measure the enormous individual parts that make up a Continuous Miner, the biggest underground mining machine in the world. But big machines aren't limited to science and commerce. Ride with us on the biggest observation wheel in the world, the London Eye, which stands 443 feet high and provides an incredible view of London. And we take a look at IMAX technology. The film, cameras, projectors, and theater screens are the largest in the world. Finally, we take a ride on every lawn tender's dream machine--the Claas Cougar, the world's biggest lawnmower.

Meet crime fighters who take on fiery killers. In Houston, visit the site of a suspicious fire with Fire Marshall Lalo Torres as he turns ashes into evidence. Former A.T.F. head Richard Garner explains motives behind the recent church fires. And at the California Criminalists Institute, John DeHaan trains special arson dogs.

Any fire raging out of control is a hazard, but when compounded with obstacles of extreme conditions, such as an oil well blowout or acres of forest ablaze, firefighters face new elements of danger. Meet a WWII London firefighter, "Hell Fighters" who squelch oil well infernos, and smokejumpers who parachute into forest fires.

It strikes without warning and kills in an instant. We fear its might even as we use it to save a life.

Witness some mind-blowing feats of strength starting with the world's most powerful elevators--one lifts fighter jets, the other lifts a giant stage filled with acrobats. Discover the world's strongest tire and the monster mine machine it rolls with. Take a 35-foot drop on the world's strongest mountain bike. See the world's strongest land transport vehicle that carries the Space Shuttle. Finally mix some drinks or chop a telephone into dust with the biggest and strongest home blender you've ever seen.

It's time to slice and dice! Take a cutting-edge look at the most amazing blades in the world, from the legendary sword of the samurai warrior with an edge sharp enough to sever a man's arm in a single swipe, to industrial shredder blades capable of gobbling anything from a sofa to a fridge, to the precision slicing power of lasers and plasma.