Episode list

When a co-worker finds 67-year-old Karen Navarra dead in a bloody scene at her San Jose, California, home, the physical evidence baffles police, until they discover data from Navarra's FitBit watch to solve the brutal crime.

April Dawn Millsap, age 14, was murdered in July 2014 while walking her dog on the Macomb Orchard Trail in Armada, Michigan. To solve the crime, investigators track down digital evidence that the killer did not realize he left behind.

When 26-year-old Erica Crippen Crosby, a young mother of two, disappears from her home in Mount Laurel, New Jersey, on December 31, 2014, detectives must follow a GPS digital trail to uncover the ugly truth about what happened to her.

On September 30, 2014 in Andover, Minnesota, Jaiden Angela Mahlberg and her friend (both age 13) went missing. Detectives immediately turn to the girls' digital devices for clues to their location. The investigators discover that the girls have been talking to strangers online. One suspect is Casey Lee Chinn of Burnsville, Minnesota. The detectives must try to locate him and possibly find the young teenagers before it is too late to save them and bring them back to their worried parents.

On October 13, 2015, 3-year-old Brendan Creato was found murdered a half mile from his Westmont, New Jersey home. His father, David Creato Jr., and his mother, Samantha Denoto, are worried sick. Digital clues help solver the crime.

Young mother Julie Ann Gonzalez, age 21, disappeared from Austin, Texas in March 2010 and was never seen again. The last person to see her alive was George DeLaCruz, her estranged husband. Detectives turn to digital clues and wireless network activity to secure justice for Julie Ann.