Just like the mighty herds of wildebeest, the people who make their homes on Africa's great Serengeti plains are constantly on the move. This episode focuses on two women searching for their spiritual identity. Alice Wangui, a Nairobi hair salon owner, takes a trip to her native Kikuyu village so that her child will be born with a sense of community. On the savanna proper, Flora Salonik lives in an isolated farming hamlet, and struggles with the decision of whether or not to return to her own roots: the bustling metropolis of Arusha, Tanzania.

For centuries, the Tuareg people have braved the brutal Sahara to trade in salt, a precious cargo once worth its weight in gold. In this episode of AFRICA, Adam Ilius,salt production a young boy of nine, crosses hundreds of miles of desolate and dangerous desert on his first trans-Saharan salt caravan.

Deep in the central African rainforest, a struggle for survival rages. This episode takes a close look at how booming overseas markets for rainforest trees threaten the existence of two groups of Africans. Cameroon's Baka people, a traditional rainforest group, have lived in harmony with the forest for centuries, but now the sound of electric saws deafens the daily music of birds and monkeys.

Isolated by mountains, Ethiopia is a center of spirituality. Here, faith is a driving force in the lives of many. This episode explores the depths of Ethiopia's religious beliefs. In the holy highland town of Lalibela, young Kibkab Wodemariam studies each day in hopes of becoming a priest. In the hills above Lalibela, Abba Defar labors at bringing to life his vision of a cathedral hewn from mountain rock. Will Kibkab Wodemariam be rewarded for his studies with the honor of participating in the annual procession for the holy day of Timkat? And will Abba Defar ever complete his mammoth symbol of faith in the Ethiopian highlands?

In the Sahel, the semi-arid border between the Sahara and the savanna, people mark the passage of time with ceremony and tradition. As the hot sun beats down on the Niger River delta, the annual Fulani cattle drive is underway.

Water is the lifeblood of Africa. It can create famine or fortune. In this episode, two families are hoping for fortune. Charles Tinkewimeru has been working the waters of Uganda's Lake Victoria for several years, building a good business selling fresh fish and dried minnows. But catches are steadily declining and Charles must come up with a new trade. Meanwhile, further inland in Uganda, the Ngwatima family has planted its annual rice crop. But the rains are late this year. A good crop depends on water, and now the Ngwatima must battle the elements in the hope of keeping their crop alive until relief comes from the skies. Will water bring fortune to these families, or will the shifting clouds spell disaster?

Surrounded by gleaming aquamarine waters and fine white sand, Zanzibar looks like a tropical paradise. But life here is not easy. No one knows that better than Issa Simai, who spends his days, spear in hand, in the warm Indian Ocean trying to catch enough octopus or lobster to make a living.

The site of a large geological deposit of mineral wealth, South Africa has prospered from a history of mining, with the lion's share of riches going to white workers and owners. South Africa's system of apartheid has since been abolished, and blacks are claiming more of the skilled jobs in the gold mines. In the last episode of the series, two women attempt to reach their goals of better job opportunities. Africa, Pt. 8: Southern Treasures looks at Xoliswa Vanda and Putswa Tekane as they try to work in an industry that may be on the decline.

Filmed in the mountains of Montana, this poignant, engrossing chronicle focuses on an extraordinary stallion, whose life has been recorded since his birth in the wild in 1995 by Emmy-winning filmmaker Ginger Kathrens.

An incisive look at the breeding, behavior, and training of humankind's best friend, including useful pointers on how to avoid mistakes when selecting a puppy.

The escalating battle for space on this planet between people and wild animals has grown increasingly one-sided, as humanity asserts its domination. But a few intrepid species are successfully challenging, harassing, and even exploiting us on our own turf.

Long recognized as one of the most intelligent birds, the raven also has a less than savory image as a scavenger that does not discriminate between humans and animals. NATURE’s Ravens explores how these all-black creatures acquired their dual and contradictory images — as birds of both life and death.

On January 28, 1998, a monster weather system slammed into Oahu’s north shore. The Coast Guard called a Condition Black — all access to the water denied. It was every surfer’s dream and nightmare combined, playing and replaying on a seemingly endless loop, as colossal waves up to 40 feet high surged over the beaches of Oahu in a monstrous, unstoppable procession. The stunning footage, some recorded on IMAX film, the stories of the surfers, and the storm itself form the breathtaking core of Condition Black.

Journey with Meg Ryan to the jungles of Thailand in search of the white elephant, a rare creature coveted by royalty -- and threatened by extinction.

From the Caribbean, the documentary hopscotches to various points on the globe to show viewers a diverse array of animals that make music.

They box and wrestle, kick with authority, and cover large patches of ground with powerful leaps. In fact, the red kangaroos of Australia’s Outback are among the finest athletes of the animal world. And that’s just as well, since the Outback presents one of the most challenging environments on the planet.

Follow Ewan Mcgregor as he travels to a remote Canadian outpost on Hudson Bay, where he investigates the annual invasion of hungry polar bears.