Keller Dover (Hugh Jackman) finds himself living every parent’s worst nightmare when his six-year-old daughter goes missing. The only lead? A battered RV that was parked on the street only hours before. Heading the investigation is Detective Loki (Jake Gyllenhaal), who tracks down the RV’s driver (Paul Dano) and takes him into custody. But when lack of evidence compels the suspect’s release, and police fail to turn up any more leads, Dover decides to take things into his own hands.