TV Guide BBC America Sunday

In the Old West, two cowboys and their sidekicks are driving a herd of cattle cross-country when they get pulled into the affairs of a corrupt Montana town.

Young chimps learn how to use tools to find food; cheetahs team up to hunt large prey on the savannah; hyenas search for food on the Namib beach.

David the chimpanzee in Senegal, Africa must sire an heir to ensure the survival of his legacy as rival males seek to claim his position as alpha male.

Animals devise ingenious ways to cope with the desert; lions hunt a giraffe several times their size; male sandgrouse fly 120 miles each day to gather water.

Leopards prowl the streets of Mumbai, India; peregrine falcons hunt from the skyscrapers of New York City; starlings dance in the air above Rome.

High among the planet's greatest mountain ranges, several elusive and mysterious animal species have pioneered ways to survive in the frigid landscape.

Rare pygmy three-toed sloths live peacefully; predators pose little threat to albatrosses; young marine iguanas fight for survival the moment they hatch.

A wealth of life inhabits the jungles of Earth, including the frogs and wasps of Costa Rica and the jaguars, dolphins and glowing fungi of Brazil.

In the grasslands, animals survive the most hostile seasonal changes on the planet; lions take on buffalo in the Okavango; caribou migrate through the tundra.

Wanting to end the cycle of violence and death for the youths in the inner-city, a detention camp probation officer decides to start a football program.

A successful agent for sports celebrities begins his own company after an attack of conscience costs him his job and nearly all of his clients.

After the owner puts the Oakland A's on a tight budget, the general manager is forced to redesign his approach as he assembles a team of overlooked players.

Wanting to end the cycle of violence and death for the youths in the inner-city, a detention camp probation officer decides to start a football program.

During the spring season, animal families raise their young and take advantage of the more favorable conditions impacting plant and animal life.

As the summer months arrive on the African continent, the native plants and animals adapt to changing conditions, including droughts and famine.

As the autumn season arrives in Africa, animals embark on long migrations and take advantage of the seasonal abundance before winter hits.

As the harsh winter season arrives in Africa, the native flora and fauna cope with shorter days, cold winds and drought conditions.