Lena Georgas

The brutal attack of a young cellist, Cassie Germaine (guest star Emily Deschanel) in her apartment leads Detectives Benson (Mariska Hargitay) and Stabler (Christopher Meloni) to investigate her orchestra conductor Robert Prescott (guest star Michael Nader). The relationship between the two, coupled with Prescott's penchant for amateur erotic filmmaking, causes suspicion when a scan of the victim's apartment reveals a series of hidden cameras recording her every move.

Determined to locate Ziva, Tony chases leads in Israel in search of her current whereabouts. Meanwhile, Gibbs and the team continue the hunt for Parsa and his growing terrorist ring.

Valerie Keenan, a young high school teacher, is found stabbed to death in the janitor's closet. The initial check of the surveillance tape doesn't turn up anything, but some of the students allude to the fact that another teacher, Mr. Bergen (Rob Campbell), was in a relationship with her. Bergen denies that anything was going on with Valerie and claims he was at the Mets game the night of the murder. The only problem is, the Mets game was rained out that night, but a local bartender verifies he stopped in. Then it hits Briscoe (Jerry Orbach) and Green (Jesse L. Martin); if it was raining that day, why weren't there any signs of rain (i.e. umbrellas, raincoats) on the surveillance tape?

Ezra has an accident and needs emergency medical attention. Terry and Frances grow closer but things may not be what they seem. Bunchy receives his settlement check and starts house hunting; Mickey unexpectedly visits Ezra to hash out the past. Later, Ray and Avi learn some very unsettling news.

After Jane jumps from a bridge to save a prosecutor suspected of his murdering his mistress, Maura is terrified that she has lost her best friend. The squad must now renew the search to find the real killer. Meanwhile, Angela enlists Frankie’s help as she applies to new jobs.

When Los Angeles’ blood supply is hacked and deemed unusable because of fear it’s been tainted, Team Scorpion must find the culprit in order to save a young girl in desperate need of a heart transplant.