While on a road trip to visit her boyfriend in Montana, Danielle Sullivan and her sister Grace are kidnapped by a truck driver on a remote part of the highway, setting off a chain of events that leads private detectives Cody Hoyt and Cassie Dewell to team up with Cody�s estranged wife and ex-cop, Jenny Hoyt, to search for the sisters. But when the investigators discover these are not the only girls who have disappeared in the area, it�s clear they�ve stumbled onto something much bigger than them all.