Marc Evans writes and directs this drama starring the singer, Duffy, in her debut film role. When Rhys (Matthew Gravelle) is required to travel to South America to do a work assignment on Patagonia's Welsh community, his partner, Gwen (Nia Roberts), goes with him, despite the fact they are having relationship difficulties. While there, however, Gwen falls for their driver, Mateo (Matthew Rhys). At the same time, an elderly woman, Cerys (Marta Lubos), leaves Patagonia and heads to Wales where she hopes to discover her family's history. She is accompanied by her nephew, Alejandro (Nahuel Pérez Biscayart), who becomes romantically involved with local girl Sissy (Duffy).

Supernatural horror set in the Wild West. A band of brave pioneers sets out to find and recover a family of settlers that appears to have been abducted following an attack on a frontier homestead. Expecting the offenders to be the usual posse of hostile natives, the group prepares for routine battle. But as men start to vanish mysteriously and hideous evidence begins to accumulate, the men realise that their enemy may not be merely human after all...