The hunt for 18-year-old Kelsey Smith, who disappeared from a Kansas Mall in June 2007. The only clue detectives had was the haunting final images of her on surveillance video. The case turned into a murder investigation when Kelsey's body was recovered from a lake in Missouri a month later.

Pensacola Police investigate the disappearance of popular news reporter Sean Dugas, and find themselves drawn into an addictive world of gaming. Meanwhile, across state a mother vanishes after a family party and a neighbour's CCTV reveals a shocking tale of murder and betrayal.