TV Guide Smithsonian Saturday

In the South Pacific, two islands collectively the size of Colorado offer views of an incredibly diverse landscape with snow-capped mountains and sandy beaches.

The Pacific Coast of Australia is home to Sydney's architectural icons, Byron Bay's iconic beach breaks, white-water adventures and the Great Barrier Reef.

The Smithsonian broadcasting team presents the Extreme Center, which is home to unique landscapes, apex predators, a town built by opals and the nation's Uluru.

The Far South of Australia is home to the rich cultural heritage of Melbourne, a sporting mecca and a brutal island prison known as Hell on Earth.

Western Australia is home to colossal gold mines, massive sheep stations, the world's largest shark, an iconic and spectacular 4x4 trail and Perth.

In the South Pacific, two islands collectively the size of Colorado offer views of an incredibly diverse landscape with snow-capped mountains and sandy beaches.

The animals that rely on the Yellowstone River to survive are showcased as the river is followed from the Rocky Mountains to the Missouri River.

Bill ventures across the snowy landscape of Yellowstone as he shares the hardships the park's wildlife faces when conditions become extreme.

Two lions take to the sky on a journey to a new home; a new flight attendant puts his training to the test; aerial firefighters face a blazing inferno.

A veteran goes back in time with a P51 Mustang; a bush aviator saves the rhinos; mechanics try to give air ambulances new engines; a pilot controls a jet.

In South Africa, experts teach about a world filled with high octane and high-risk bush flying as pilots endure rough runways, wildfires and wild animals.

A bush airport fights back; Namibian cowboys try to save an antelope from a drought; a father and son duo tackle a test; a Pangoli becomes endangered.

A helicopter team goes on a rescue mission; a young pilot tries to break a record; dangerous fluid leaks; vets want to stop a war in Zambia.

A maintenance team fixes a mid-air engine shutdown; a pilot brings engineers to live power lines; a rookie does his first flight; scientists find lions.

Canine teams track down birds at a busy airport; mechanics fix a cargo hauler; helicopter pilots go to the Cape of Good Hope; flying doctors perform surgery.

A security team faces extreme weather; a bush pilot prepares for a test; UN aviators do emergency missions in Madagascar; Black Rhinos need to be saved.

A damaged plane plunges Anchorage Airport into an emergency; a leak on a Coast Guard helicopter jeopardizes emergency cover.

A father and son team of bush aviators flies a NASA expedition into the wilderness; a rookie airline pilot attempts a landing on a remote island.

Valentine's day delays loom when a squadron of F22 makes an unexpected landing; high winds threaten a helicopter's 600lb sling load.

Customs agents intercept a grenade launcher smuggled into the United States; a blizzard threatens to cut off a remote island airport.

Bush aviators push the limit of their plane to deliver a two-ton generator; in Fairbanks, slippery runways threaten the Internation Ice Carving Championship.

The first fly-by-wire helicopter is put through its paces, as test pilots harness freezing temperatures. In Anchorage, a jet is lifted for repairs.

A wolverine overcomes first-time flyer's nerves to travel to a new home; a helicopter pilot hunts for a showstopping ice cave; an 80-year-old cargo plane.

A heavy hauling helicopter flies across the frozen Bering Sea to the tiny island of Little Diomede, just 2.4 miles from Russia.

When seismic activity around Mount Spurr heats up, pilots fly supplies to farmers; the operations team at Anchorage Intl. deal with 2 emergency landings.

The state whose motto is 'Live Free or Die' hosts a population of free thinkers living among its impressive mountains, beautiful rivers and colonial villages.

A heavy load passes over Johannesburg, South Africa; a new pilot transports passengers for the first time; helicopter pilots attempt to ward off rhino poachers.

A new airliner is delayed by a mysterious engine fault; scientists fly to hunt a killer disease in the bush; a major runway is closed by a broken-down plane.

A remote safari lodge runway is at risk of being cut off by a baboon invasion; a wild cheetah gets to fly for the first time.

A flight is delayed because of a wildlife invasion; a massive airliner attempts to land at a bush airport at night; cargo handlers scurry to deliver flowers.