When an ex-con who has recently been released from prison goes missing, the team questions whether her past mistakes, including embezzling money from former clients, may have come back to haunt her.
Jack and the squad search for a celebrity couple's Sudanese 2-year-old adopted son, who is kidnapped from his home.
The team members investigate when a man and his 18-year-old daughter mysteriously go missing.
The team investigates the disappearance of a grieving woman and tries to determine whether or not she went missing while trying to rescue her son in Central America.
The team members search for a woman who disappeared after the police killed her boyfriend.
The team members try to locate a woman who disappeared in the aftermath of an office shooting.
The FBI team and Gil Grissom search for a pattern that will help them capture a suspected serial killer.
The team members search for a male college student who vanished after making provocative, racist statements about African Americans to an acquaintance during a classroom discussion.
When an ultimate fighter disappears after winning a match, the team discovers he knew a lot of people that could have been responsible for his abduction.
A college student and former child prodigy receives a death threat and subsequently disappears while working in a mall as a department store Santa.
The team attempts to locate Scott Lucas, a private investigator who has gone missing while doing undercover surveillance.
The team investigates the case of a woman who vanished from the veteran's hospital where she was doing community service work.
Jack tries to find a doctor who has performed illegal abortions on women forced to work as prostitutes in a human trafficking ring headed by Franklin Romar.
While Jack fights for his life in the hospital, the team searches for Diana, a 16-year-old heart transplant patient who disappeared after cheerleading practice.
The team searches for a man who disappears after miraculously waking from a three-year coma, and uncovers a dark secret the man discovered while piecing together faint memories of life before his accident.
The FBI suspects foul play is involved in the disappearance of a lottery winner who has vanished after coming into millions.
The team tries to locate a tow truck driver who rescues a young boy and becomes a hero -- and then vanishes.
Five people with a curious connection are abducted at the same time from a coffee shop, and the team is called to investigate the unusual disappearance.