After the strange death of his young son at their new home, Daniel hears a ghostly plea for help, spurring him to seek out a renowned paranormal expert.

The discovery of the tomb of William Tell’s son in a town in the Basque Country spurs the village’s cantankerous citizens to lobby for Swiss annexation.

Laura, a Spanish woman living in Buenos Aires, returns to her hometown outside Madrid with her Argentinian husband and children. However, the trip is upset by unexpected events that bring secrets into the open.

Laura has spent years looking for her sister Sara who went missing in the depths of the jungle in the Congo. Neither the NGO she works for, nor the embassy, have news on her whereabouts until a photo appears of Sara in a mining town. Apparently, Sara is being held captive by The Hawk, the fearsome rebel leader who controls the mafias behind the prized mineral coltan.

A dysfunctional group of wannabe Basque terrorists awaits word about a new mission while Spain makes a run at the World Cup title.

When the naked body of a teenage girl is found on the banks of the River Baztán, it is quickly linked to a similar murder one month before. Soon, rumours are flying in the nearby village of Elizondo. Is this the work of a ritualistic killer or is it the basajaun, the ‘invisible guardian’ of Basque mythology? Inspector Amaia Salazar leads the investigation, taking her back to the heart of the Basque country where she was born, and where she hoped never to return. Shrouded in mist and surrounded by impenetrable forests, it is a place of unresolved conflicts and a terrible secret from Amaia’s childhood that will come back to haunt her. Faced with the superstitions of the village, Amaia must fight the demons of her past to confront the reality of a serial killer on the loose. But as she is drawn deeper into the investigation, she feels the presence of something darker lurking in the shadows…