After decades of extinction, wild jaguars are once again roaming in Northern Argentina. It has been at least thirty five years since a wild jaguar cub was spotted in this dry and dusty part of Argentina. But in August 2025, a baby appeared on the chocolatey-brown banks of the River Bermejo. Its existence was a great success for the team from Rewilding Argentina, a non-profit foundation that started reintroducing these magnificent beasts here in 2019. But it has not been easy: hunting is still a problem and the organisation has had to get the locals on board with sharing their home with big cats. Charlotte Pritchard travels to 'The Impenetrable Forest' to find out how the birth of this baby became possible.

This episode of The Documentary comes to you from Assignment, investigations and journeys into the heart of global events.