Bear Brother tells the story of Roberto Hartasánchez and his colleagues who have spent half a century fighting for the survival of Spain’s last brown bears. Just 50 years ago, illegal hunting and the fragmentation of their habitat rendered brown bears nearly extinct in Spain. That’s when Roberto Hartasánchez and his friends decided to act: To prevent the bears’ extinction in northern Spain, they founded FAPAS, an independent organization that works to secure region’s viability as a habitat for brown bears and other species. Thanks to their effort, about 400 bears live in the area today, but according to Roberto, they are still at risk of extinction, as their genetic variability is insufficient for their survival. Roberto and his friends also document and investigate illegal killings by poachers. Shining a spotlight on the bears’ plight, FAPAS is a thorn in the side of the local government, which, intent on maintaining the region’s positive image, claims that bear poaching is not an issue.