Raven's friend Tracy is hacked by a man she met on a dating app; things get even more complicated when the hacker is found dead and Tracy wakes up with the murder weapon and no memory of what happened.

CSI: Cyber is a drama inspired by the advanced technological work of real-life Cyber Psychologist Mary Aiken. Special Agent Avery Ryan heads the Cyber Crime Division of the FBI, a unit at the forefront of solving illegal activities that start in the mind, live online and play out in the real world. While other FBI agents search for criminals in dark homes and alleys, Ryan and her team search the "dark net," a place deep in the bowels of the Web where criminals are anonymous, money is untraceable and where everything is for sale with just a keystroke.