When two sisters set out across a remote stretch of Montana road to visit their friend, little do they know it will be the last time anyone might hear from them. The girls - and their car - simply vanish. Former police investigator Cody Hoyt has just lost his job and fallen off the wagon. Convinced by his son, who the girls were coming to visit, and his former rookie partner Cassie Dewell, he sets out for the girls' last known location.

"Former police officer Cassie Dewell is trying to start over with her own private investigation firm. Guilty about not seeing her son and exhausted by the nights on stakeout, Cassie is nonetheless managing...until an old friend calls in a favor: she wants Cassie to help exonerate a man accused of assaulting a young girl from an influential family. Against her own better judgment, Cassie agrees. But out in the Big Sky Country of Montana, twisted family...