CSI Crime Scene Investigation

A man about to go on trial for arson and the murder of his wife and child seeks assistance from Grissom to help prove his innocence.

Avery welcomes D.B. Russell to the team as they investigate a burglary/homicide committed by someone who hacked the home's security system remotely. Also, Avery considers moving to a new position within the hierarchy of the FBI, Krumitz is a witness in his sister's trial, Elijah deals with a delicate family situation and more is revealed about Nelson's and Raven's backgrounds.

When Raven's friend, Tracey, is fired, evicted and her bank accounts emptied as a result of being hacked by a man she met on a dating app, Raven helps to locate the culprit. However, Raven asks for her team's help when the hacker is found dead and Tracy wakes up in a motel room with the murder weapon and no memory of what happened.