As the Kalahari Desert faces a worsening dry season, prides, packs and herds of all kinds must rely on the power of family to survive.

This landmark series explores a vast ocean that stretches nearly 10,000 miles, from Arctic to Antarctic and from sun-drenched tropical reefs to crushing abyssal depths. Over three programmes it reveals the amazing, surprising and resilient inhabitants of the Atlantic, both animals and people, as they pit themselves against the world’s wildest ocean.