The team searches for a mother, who disappeared with her infant son after a self-defense class.

The team searches for an abducted man who has been faking his identity for many years.

The team searches for two women who were abducted in broad daylight.

The team searches for Elena's former partner, an undercover cop who goes missing after a sting.

The team searches for a bar owner who has a religious statue that is believed to create miracles.

The team searches for a 13-year-old who vanished after her mother picked her up from school; Samantha and Jack's relationship hits a speed bump.

The team searches for a local television weatherman, gone missing after showing up for work bleeding from his side.

When a doctor disappears from a hospital, the team tries to determine whether her past is somehow connected.

Jack and Samantha follow the trail of a man who disappeared after attending his employee's funeral; during their investigation, Jack and Samantha rekindle their relationship.

The team learns a shocking truth while searching for a missing paraplegic who was injured in a car accident two years earlier -- one that may explain his disappearance.