Orla McCabe has found a case of money. Willing to do almost anything to give her family a better life, she flees with her husband and baby daughter - and the money. Meanwhile, detectives Lynch and Carlin are investigating a botched human trafficking deal on the isolated northern moors. They find piles of bullet-riddled bodies, but no cash. The owners of the money are on the hunt, and soon a world of brutal violence envelops Orla and the detectives. To secure her daughter's future, Orla will never stop running. It's just a matter of who she drags into the dark with her. . .