Christine Garver

The team must recover stealth technology from a military plane that was shot down in Bosnia. Meanwhile, Walter's sister visits with Sylvester at the garage.

A series of murders in San Francisco bearing the tell-tale signs of the infamous Zodiac Killer have the BAU wondering if the notorious serial killer has returned. Meanwhile, Reid ponders if he should be doing more with his genius abilities.

While investigating the murder of a seaman who was set to testify before a grand jury, the team uncovers the resurgence of an international human-trafficking ring.

Cooper and the Red Cell team attempt to stop a killer who takes the time to disfigure his victims' faces.

When Russia threatens to invade Bulgaria, Elizabeth must seek NATO's support. The alliance's existence is threatened however, when France refuse to cooperate.

Elizabeth runs into trouble while in Libya for negotiations, when a car accident leaves a girl severely wounded. She tries desperately to find medical care for the girl.