Grissom and Sara's investigation into charges against David Hodges heats up as Internal Affairs joins the hunt. Also, pressure rises for the CSIs when a video game developer's body is found floating in a fountain before a huge gaming tournament.

An abandoned horse covered in blood leads the CSI team to a halfway house for convicted murderers. Also, Grissom and Sara begin to circle their prime suspect in the David Hodges case.

When the CSIs are called to investigate human remains found in a convention center owner’s bathtub, Sara and Grissom use the case to get close to attorney Anson Wix’s star forensic expert witness, just days before David Hodges’ trial begins

When David Hodges goes missing, the entire CSI team searches for any piece of evidence that can help locate him, clear his name and save the reputation of the entire crime lab.