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Crossing the Pacific, Gordon discovers how a view from above is helping protect hammerhead sharks and giant tortoises and what it could reveal about the future of the coral reefs.

Ade Adepitan embarks on the first leg of his journey around Africa, starting in West Africa from Cape Verde to Senegal and the Ivory Coast, before finishing in Nigeria.

The second of Ade Adepitan's four-part journey around Africa takes him across Central Africa, from the coast of Gabon, through the Democratic Republic of Congo, and on to Uganda.

Ade begins his journey in Tanzania in Selous Game Reserve. He is on the lookout for elephants, but numbers in this park have fallen by 90 per cent over the last few decades.

Robson arrives in Madagascar, where his first target is a Jobfish that is a reef predator with powerful jaws. Later, he seeks the assistance of local fishermen to spear an octopus.

Robson Green teams up with some of Borneo's top anglers in order to catch a deep-sea monster that has the power to become invincible.

Robson journeys to the heart of Central America to catch the fastest fish on the planet. Along with the Garifuna people, he'll aim to nab the sharp-toothed Sierra Mackerel.

Sanjayan visits remote communities of Australia in order to see indigenous land management in action by tracking rare animals and burning grass.

On the eastern coast of Australia, Sanjayan explores mangrove forests in order to acquire a better understanding of blue carbon.

The filmmaker follows a former Royal Marine as he uncovers the brutal illegal tiger trade in Southeast Asia, exposing the traffickers and their deadly networks.

The diverse lives of the Namib endure scorching 50-degree temperatures and a mere half-millimeter of annual rainfall in one of the oldest deserts of the world.