A group of biologist search for evidence of an unseen southamerican bear. There, they hear about the local legend of a bear-man known as the ucumar.

After a brilliant start to his career, journalist Lucas Bika seems to have lost his spark. During your visit to the Grimoire bookstore, he will find a photo that will take you in search of a possible legend.

Máximo Ferradas, businessman and youngest son of a powerful family of lifelong fishermen, asks Francisco, his father, for his share of the inheritance. Thus, he begins a long journey that will take him to distant lands, trying to build his own empire. He settles in Perla del Mar, a fishing town in Argentine Patagonia, where he meets Caviedes, a pleasant and enigmatic businessman who offers him the top of business; Coletto, an artisanal fisherman, with whom he faces death due to the fishing law; and Maite, a beautiful and lonely woman, with whom he falls in love for the first time. Maximo plunges into this world. There, so vertiginously he will enjoy his rise, and then suffer his fall ... and then find his redemption.