Janet Song

Claire hopes to help the ducklings move out of the house while Phil is visiting Alex at college, Jay helps Mitch with Lily's sleepover, and Cam, Gloria and Manny must meet a big hot sauce delivery deadline.

Ann helps a nervous Leslie get ready for her first date with Dave, by giving her a practice date, while everybody else at the office tries to dig up the juiciest dirt on each other.

The remains of numerous victims are discovered in the walls of an elderly couple's home and the hunt for the killer becomes urgent when the BAU learns the killer's specific ritual.

Still mourning the death of his girlfriend, Wilson resigns from Princeton Plainsboro; House must determine if he is responsible for the death of his best friend's girlfriend; Thirteen struggles to treat a patient objectively.

Deputy Director Ochoa tasks the team with a covert operation focused on dismantling a terrorist group. Callen worries about what the assignment means for the future of the team.

A storm causes chaos in the Emergency Department; Alex is torn between an obligation to her husband and her co-workers' needs; Joyce goes on a spending spree with found money.