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.

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.

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.