13-year-old Annie Miller disappears from a bus stop after missing the bus to school. Suspects emerge quickly, including Annie's Godfather and the town mayor, and the team recruit Annie's best friend, Siobhan Arintero, to help the investigation as they believe she may hold vital clues. However, when Siobhan goes missing exactly 24 hours after Annie, the investigation is heightened and the only clues the team now have are a series of videos made by both the girls. Sam dedicates herself to hunting through hours and hours of video footage in the hope that she may uncover something that will save two lives.
