Natalia tries to fill the missing pieces of her life by learning the truth about her age. Shocking new information exposes the lies.

In an explosive confrontation, Natalia demands answers from Michael about their reasons for adopting her. Law enforcement officials speak out.

When a 69-year-old man goes missing in Kalamazoo, Michigan, neighbours seem to be hiding information from police. What happened to him?

Before single mom Lori Leonard settles into her upstate New York home, she vanishes without a trace and detectives don't know if she's dead or alive.

CSI Alina Burroughs travels to Austin, Texas, to investigate the 1988 murder of 20-year-old, Nancy DePriest. She was found shot in the head at her job.

CSI Alina Burroughs travels to the Colorado mountains to investigate the 1995 shooting death of Bruce Dodson, killed while hunting deer.

Robert Champion suddenly dies in the back of the marching band bus. An autopsy points to foul play, exposing a dirty secret inside the premiere marching band.

The shooting of a football coach inside a high school triggers a lockdown in the middle of a school day. Police race to track down an active shooter.

Roo works to take down a menacing pilot interested in a 15-year-old decoy. And the team struggles to find the identity of another predator.

Roo and Shelby stake out a predator's hotel to take him down. The team is shocked when they learn details of the identity of "The Gray Man".

Before single mom Lori Leonard settles into her upstate New York home, she vanishes without a trace and detectives don't know if she's dead or alive.

Danielle Davis is found dead in her college apartment, strangled with the cord from her laptop. Police know they'd better be quick to find this co-ed's killer.

Noah Kinney is shot dead in a car in Akron, Ohio. Detectives race to find an armed killer on the loose and discover video evidence that cracks the case wide open.

A 911 call leads police to find Ron Whiles shot and burned in his home in Lafayette, Indiana. Police questioning leads them to one name.

Follows the interventions of the Security and Customs Services at the borders of Spain who are under the constant threat from drugs, weapons, and suspected terrorists.

Follows the interventions of the Security and Customs Services at the borders of Spain who are under the constant threat from drugs, weapons, and suspected terrorists.

Follows the interventions of the Security and Customs Services at the borders of Spain who are under the constant threat from drugs, weapons, and suspected terrorists.

Follows the interventions of the Security and Customs Services at the borders of Spain who are under the constant threat from drugs, weapons, and suspected terrorists.

When Lisa Stukey has not been seen or heard from for several weeks, Police find her decomposing body inside her home. The investigation leads to a shocking discovery!

Extremely popular teenager Kathy Chou goes missing in Washington, shocking everyone. Then, a surprising tip leads to police looking at those closest to her.

Robert Henry, an executive in Tacoma, is murdered in 1995 by a masked gunman. His wife tells police she thinks he was killed by a former business associate.

When Gayle Isleib is shot dead in 1996, police identify a co-worker. Evidence is found of stalking, plans to kidnap her, murder her husband and love poems to Gayle.

A popular New Jersey teen is found murdered in her aunt's kitchen. Police investigate her relationship with a 20-year-old, exposing abuse and a tragic end.

An Auburn graduate vanishes in Alabama, and her friends grow suspicious of one another as secrets emerge and the search for answers turns inward.

26-year-old Luigi Mangione is a young man from wealth and privilege. What drove him to the deadly shooting of United Healthcare CEO, Brian Thompson?

A scorned, abusive lover hunts the Dallas suburbs for his ex. When he can't find her, he unleashes his revenge on residents.