The mother of a missing marketing executive receives a ransom demand via e-mail, a boy goes missing en route to his birthday celebration, and a woman appears to have been kidnapped by a car thief.
A school bus is hijacked by kidnappers who keep upping their ransom demands, a search is carried out for a missing priest in desperate need of a liver transplant, and a woman mysteriously disappears during her fiance's dinner party.
The team searches for a blind girl and her mobility instructor, a hospital worker disappears on a quiet rural road, and the hunt is on for an X-ray technician who feared being abducted by aliens.
Jack, Samantha and Danny track a gunman who shot Martin and left him in a critical condition, a teenager is believed to have gone missing so he can execute a plan to bomb his school, and Elena Delgado has a tricky first assignment as she helps search for a missing prostitute.
The team searches for a man who has abducted a boy, Elena works undercover as an exotic dancer in the hope of solving the riddle of a stripper's disappearance, and a number of people seem to have a grudge against an emergency services operator who has gone missing.
All 18 episodes from the sixth season of the American crime drama series. The sole responsibility of the FBI special task force is to find missing persons by applying advanced psychological profiling techniques to peel back the layers of the victims' lives and trace their whereabouts in an effort to discover whether they have been abducted, murdered, committed suicide or simply run away. For authoritative agent Jack Malone (Anthony LaPaglia) and his driven colleagues, finding the missing depends as much on figuring out who they are as it does on determining where they are. Episodes are: 'Lost Boy', 'Clean Up', 'Res Ipsa', 'Baggage', 'Run', 'Where and Why', 'Absalom', 'Fight/Flight', 'One Wrong Move', 'Claus and Effect', '4G', 'Article 32', 'Hard Reset', 'A Bend in the Road', 'Deja Vu', 'A Dollar and a Dream', 'Driven' and 'Satellites'.