When a coworker finds 67-year-old Karen Navarra dead in a bloody scene at her San Jose, California, home, the seemingly contradictory physical evidence baffles police. They must turn to digital evidence to solve this mysterious case.

The tragic murder of a 14-year-old girl walking her dog in Armada, Michigan, leaves behind little physical evidence, forcing investigators to enter the digital world in search of virtual clues the killer has no idea they left behind.

When 26-year-old Erica Crippen Crosby disappears from her home in Mount Laurel, New Jersey, detectives must follow a digital trail to uncover the horrifying truth about what happened to her.

When two 13-year-old girls go missing, detectives immediately turn to their digital devices for clues to where they might be. Discovering the girls have been talking to strange men online, it's a race against time to find them before it's too late.

The remains of three-year-old, Brendan Creato are found less than a mile from his home in Westmont, New Jersey. Investigators use digital clues to help in track the killer and solve the murder.

Detectives from the Austin, Texas, police department turn to a puzzling digital trail to uncover the horrifying truth behind 21-year-old Julie Ann Gonzalez's sudden disappearance.