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A group of athletic adventurers goes to the Mexican mountains where they run a marathon race against Tarahumara Indians with the ultimate aim of being crowned the last man standing.

The host discusses various methods in which Earth and its natural resources like volcanoes, water bodies and other environmental phenomenons mould themselves in order to support life.

The hosts visit some of the biggest food production units in Britain and share details about the various processes that take place inside these factories.

In South Africa, Steve Backshall braves rough seas to get close to a great white shark and goes out scavenging with the world's most fearless animal.

Steve heads into the australian outback to fulfil a lifelong dream of finding the most venomous land snake in the world, whose toxic strike could kill a quarter of a million mice in a single bite.

An emperor penguin chick spends its first precarious months on the ice, growing up in the world's most extreme nursery in the harsh environment of Antarctica.

Actor Will Mellor convinces his good friend, comedian Keith Lemon to join him on an extraordinary road trip through Albania.

Mexico City is one of the world's emerging food destinations and it's also Eva Longoria's second home. She showcases some of her favourite spots amid the city's ever-changing culinary scene.

Inside the largest malt loaf factory of the world, Gregg Wallace explores a culinary process of massive proportions that leaves him in awe.

The hosts visit some of the biggest food production units in Britain and share details about the various processes that take place inside these factories.

The host journeys in France to investigate claims that some people think French cuisine is no longer among the best in the world.

An emperor penguin chick spends its first precarious months on the ice, growing up in the world's most extreme nursery in the harsh environment of Antarctica.

The host discusses various methods in which Earth and its natural resources like volcanoes, water bodies and other environmental phenomenons mould themselves in order to support life.