Christina Ferraro

The team searches for a sniper who is terrorizing New York; Beckett tries to hide her worsening PTSD from Castle and the detectives.

The stress of McGee and Delilah's (Margo Harshman) imminent wedding takes its toll, as Delilah is rushed to the hospital. Also, the NCIS team travels out to sea after a young and healthy Petty Officer aboard a Navy destroyer dies in his sleep.

Natalie becomes convinced a critic (Guest Star Dylan Baker) who panned her daughter Julie's theatrical performance was responsible for a murder at the same time as the show.

The team investigates the murder of a Navy contractor involved with selling confidential data.

Nancy goes back to California and pursues her custody battle against Jill; Andy's relationship takes a odd turn; Shane tries college; back on Wall Street, Doug makes do without Nancy.

When a misunderstanding leads oddball Sheila (guest star Merrin Dungey) to falsely accuse both Ted and Linda of sexual harassment, Veronica comes up with a solution to avoid having them punished. She convinces Veridian to classify sexual harassment as a disease so anyone accused of it can't be held responsible. But when the employees get wind of the new rule, things start to get a little crazy in the office.