When single dad David Heisler goes missing, digital clues lead detectives into the desert, but the trail stops cold. Investigators ask digital forensics experts to help them unravel this twisted mystery and reveal the truth of what happened.

The remains of Brendan Creatato, a 3-year-old boy, are found less than a kilometer from his house in Westmont, NJ. The researchers follow digital clues to help track the murderer and resolve the case.

When 12-year-old Aynis Vargas dies in a seemingly random attack at a party. Investigators piece together clues from social media, cell phone data, and surveillance footage to try to get justice for Aynis, her family, and the whole community.

The tragic murder of a 14-year-old girl walking her dog in Armada, MI, 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 widow Valena Shepherd is found dead at home, police suspect foul play. Investigators follow digital clues that suggest Valena knew her killer and hope the data contained within a digital heart monitor device pinpoints the perpetrator.

When 21-year-old Julie Ann Gonzalez goes missing out of the blue, the detectives from Austin, TX, try to map a digital trail of clues that lead to a terrifying truth about her sudden disappearance.

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

After the murder of young mother Morgan Ashlye Fox, investigators don't have much physical evidence. With numerous suspects in the frame, digital evidence reveals the secrets of a monster hiding in plain sight.