Trudging through India, Kenya and Mali, three migrating elephant herds are followed in this one-off.

They must steer clear of peril of many kinds, including predators, wildfire and poachers.

In Mali, drought kills a newborn, resulting in a touching ‘funeral’, while in India a ‘mobile fortress’ of adults protects a baby from a tiger.

It’s not all doom and gloom, though: there’s also sweet footage of little ones enjoying long-awaited mudbaths.