A small but incredibly strong and violent man dies in police custody after he beats a much larger man to death.

The team are on the trail of a serial rapist who preys on women on a deserted stretch of road. Grissom also learns that one of his staff has committed a criminal offence.

Sydney meets with Renee in Madrid, where she is captured and taken to an unknown location. Under the influence of drugs and hypnosis, she is forced to recall her conversations with Vaughn and to divulge information about the APO.