¿Para qué sirve un oso?

Guillermo (Javier Cámara) is an internationally-renowned Spanish biologist investigating climate change in Antarctica. Alejandro (Gonzalo de Castro) is a zoologist with less prestige looking for bears in the woods of Asturias. Science isn't going very well for either of them: Guillermo finds a plant sprouting through the ice. Alejandro can't find any bears in Asturias. They have something else in common: they're brothers. Their paths separated a long time ago, since their personalities clash as much as their scientific methods. (Alta Films)