Monica shows up again and Frank tries to get his hands on the inheritance. Meanwhile, Jody and Sheila think they are haunted.
In the conclusion of last season's cliffhanger, the BAU pursues Billy Flynn, who has kidnapped Det. Spicer's daughter and continues his murder spree throughout the city of Los Angeles.
An investigation is opened when Officers Cooper, Sherman, and Brown find an abandoned baby in the middle of an intersection. However, the case proves to be too close to home for Det. Adams, whose involvement with the investigation forces her to deal with past issues. Meanwhile, Detectives Bryant and Moretta find themselves in a difficult situation when they can't seem to gather sufficient funds to place a teenager under police protection for her safety.moreless
Novak helps a deaf woman search for her teenage daughter, who has run away with two friends and no money. Meanwhile, Hunter investigates a murder tied to a diplomat's pending illegal arms deal.moreless
Allison is kidnapped after Novak's ex has his cover blown during a counterfeiting investigation.
Novak's estranged father resurfaces after learning she's protecting a witness who could bring down his criminal enterprise.
Sparks fly when Hunter assists an investigation lead by Novak's ex-husband and suggests he may have the wrong suspects in a hotel room robbery that resulted in the death of a business executive. Meanwhile, Novak tracks down an escaped convict.moreless
Novak convinces Devane to let her old friend, now a reporter, shadow her and Hunter during the investigation of a tour bus robbery, unaware the friend is now a cocaine addict.
Hunter, Devane, and Novak team up to find Molenski's killer, who lures another unsuspecting cop to his death with the help of her boyfriend.
A college professor is blackmailed by a campus serial killer after running over one of his intended victims while driving drunk. Meanwhile, a former girlfriend of Hunter's rejoins the force and is assigned to work the case with him.moreless
The frustrated gigolo of a retired film star turns to robbing ATM's, with deadly consequences. Meanwhile, Hunter attracts the attention of an opportunistic lawyer when he makes a bad arrest in the case.moreless
Molenski becomes distracted by the glamour of her undercover assignment to bait a ring of strong-arm art thieves, resulting in her gun being stolen and used to commit a murder.
The Captain faces an IA investigation when the name "C. Devane" is found on the debtor list of a mob accountant murdered while under police surveillance.
Penhall abandons Ioki during a stakeout when he learns that Clavo has been taken to the hospital. As punishment, he is assigned to foot patrol in a precinct full of dirty cops and partners with rookie officer Dean Garrett, who the other cops suspect of being an IAD plant.moreless