Angela Gots

The CBI team launches an investigation into the National Society of Authentic Santas when one of its members is found murdered.

The unit team is called in to investigate when male victims are found with all identifying parts of the body removed.

Following their engagement, Navid and Adrianna celebrate their respective bachelor and bachelorette parties.

Adrianna turns to Naomi and Kelly for support after making her decision about her baby, and also reveals who the baby's father is. Elsewhere, Ethan helps Annie rehearse her lines for the school play audition.

When Liam transfers to West Beverly, Naomi finds herself stunned but captivated by the intense, handsome bad-boy who takes her out on weeknights to partake in illegal street racing.

Thirteen's date gets ill after a night of partying and House takes on her case, Foreman confronts Thirteen about her self-destructive lifestyle, and private investigator Lucas is hot on Wilson's trail.