This engaging documentary follows packs of animals around the world, examining how they hunt as teams, follow rules and learn to survive together.

On the savanna of East Africa, a lion pride competes with a pack of hyenas for prey, while in the American Rockies, opportunistic wolves chase after and cannily separate an elk herd in deep snow.

In the Kalahari Desert, meerkat pups follow up a morning of sunbathing with a lesson in scorpion hunting from their parents, while a colony of bats shares its feed with friends to pay off debts.

An extraordinary glimpse of team work, loyalty and sacrifice in the animal kingdom.