A school bus is abducted by kidnappers who demand more and more for ransom.

When a priest disappears Jack begins to think that the man is involved in some wrongdoing rather than the possible victim of a crime.

A missing-persons case becomes a criminal investigation when, after a recently engaged woman disappears, it turns out that she was running a confidence scheme.

When a 14-year-old violinist disappears on the night of a concert, the team follows her and her valuable violin’s trail and Samantha bravely tries to recover from the gunshot wound.

Malone searches for a missing woman whose description matches those of a series of murder victims from a 12-year-old case only to learn that Graham Spaulding is pulling the strings, and drawing on incidents in Jack’s past to lure him into a trap.

When a high school sex-scandal leads to murder it is the team’s job to figure out who did it and why.

The team is baffled as to why no family members come forward after a Latino boy is abducted in middle of the day time from a street in Spanish Harlem. That leads the team to suspect that his family are illegal immigrants and are too afraid to come forward.

When a young fireman disappears after heroically pulling two people from a burning building, the team begins to suspect that other firemen may be guilty of arson.

The team searches for a doctor who disappeared after going for a run with her ex-husband. They soon find out she recently had a miscarriage and broke up with her boyfriend.

When Luke Horton disappears after a class reunion, the team initiates a search for him, and learn that Luke was living a double life and was finally ready to come clean.