In the cloudy mountains of northern Spain a legend still lives. The ancient Celtic tribes called it “the spirit of the storms” and all the inhabitants of the forest know that the mist conceals the most successful predator in the Northern Hemisphere. It moves like a ghost between dark and light, around forests and moors, never allowing itself to be seen, and reports of sightings are very scarce. The howl of the wolf has, since time immemorial, resounded around these mountains, and along with the snow freezes the hearts of all those who hear it, over many centuries forging the black legend of the wolf in old Europe. Organised into packs governed by leaders, often intolerant and dangerous, the family clans stop being a safe place in which to live. The packs become overcrowded and some individuals are forced to leave forever. This is the story of the lone wolves and friends who one day decided to remain together till the day they die.