For guidance northward, illegal immigrants from Latin America frequently enlist mercenary escorts known as "coyotes." This program examines one such charming and unseemly figure and the three Guatemalans who have placed their trust in him. Viewers follow the nervous foursome through checkpoints and river crossings as they employ unreliable forged documents and take on false identities-while facing physical danger and the constant threat of deportation....

When seasonal rains sweep across South America, the Amazon River and its tributaries overflow their banks to create an ecosystem unlike any other-a place where, for six months out of each year, land-dwellers and water-dwellers mingle. This program joins an expert Amazon biologist in a journey into the flooded forests of the Amazon Basin to film dolphins navigating through treetops, a male "water monkey" releasing a cloud of babies from the nest in...

Inhabiting a shrinking pocket of rainforest in Paraguay's Eastern Canindeyu Region, the Ache are one of South America's last hunter-gatherer societies-and in imminent danger of cultural extinction. This program presents an intimate portrait of the Ache in their natural habitat, focusing on the Gatu tribal group. Sequences filmed during extensive stays with the tribe reveal their customs and technology, including hunting tools and methods, camp preparations,...

As globally recognized landmarks go, the Sydney Opera House is tough to beat. But the city of Melbourne has impressive features of its own. This program looks at the high life while going down under-exploring Melbourne's 300-meter Eureka Tower, the tallest residential building in the world and the most exclusive address in the southern hemisphere. Featuring interviews with architect Nonda Katsalidis and developer Benni Aroni, the episode provides...