When a high-tech map maker is murdered, Jane and the FBI investigate the possibility that he may have unearthed a spy ring before he was killed. Elsewhere, Rigsby and Van Pelt are caught up in a disturbing conspiracy.moreless
While Wade gets advice from Jessica on winning Marion back, Stuart gets to know some construction workers.
Gerard and Peter reminisce of the events that made Deucalion and Derek the men they are today. But both Scott and Stiles have reservations regarding the truthfullness of their versions fo the past.moreless
The battle between Derek's pack and the Alpha pack brings about serious repercussions.
The virgin killings continue and the twins start to cause trouble at the school.
A friend of Stiles vanishes while Lydia and Allison discover a hint as to the location of Boyd and Erica.
Derek and Isaac search for Erica and Boyd, and a new wolf pack arrives in town with its own menacing Alpha.
Jim's investigation into a millionaire's death butts head with the UFO group that inherited the dead man's money – they insist it was an alien abduction. Callie's isn't having much luck finding a job in Palm Glades but her relationship with Jim is heating up.moreless
Before a group of Navy SEALs can embark on a hostage rescue mission, Sam Hanna is forced to interrogate the group to determine who killed a Navy intelligence officer.
After outing Clay (Guest star Marcello Thedford), Malik's invitation to appear on his favorite childhood television show, "Mookie", is revoked. Meanwhile, Jason enlist the help of Kelly and the rest of the sunbeams to make a warm welcome Clay's boyfriend (guest star Brian Wade).moreless
Brenda and the PHD investigate the murder of a personal trainer in a restaurant parking lot. Their prime suspect is the possessive, short-tempered husband of the woman with whom the victim was involved. Complicating the investigation: their only witness is the restaurant's frightened parking valet, who has OCD.
At the same time, Pope's budget constraints means the PHD must complete anti-terrorism training in order to receive additional funding from the federal government. This makes work a challenge when they must all don haz-mat suits and simulate an emergency drill.