A few years ago a man appeared who claimed to speak an apparently lost language: Chaná. Soon dictionaries were published and the language could be completely recovered. This man also located the Chanás in the same place where the Volga Germans live today, in the province of Entre Ríos. Inspired by the book of poems of the same name, Big Shadow is the story of a group of friends who live in German villages while they prepare a film about the new language.

Along distant and desolate streams, five men start looking for the fossil of the largest feline that has ever inhabited these lands – the saber-toothed tiger –, holding onto the hope of saving themselves through the sale of the bones of the tiger.