A Navy Lieutenant who worked at the Pentagon as an intelligence officer tries to kill himself by threatening to jump off a high building. Gibbs tries to intervene but the case is upgraded to murder when someone shoots the Lieutenant, sending the man falling to his death. Now, the team must capture his killer who may be responsible for jeopardizing many counter-intel operations. In the meantime, DiNozzo believes that Abby might be leaving NCIS, having considered a job in the private sector..
When Arnett fell from the roof, Gibbs grabbed at his hand, and moments later the scene ended with an image of Gibbs's face. His shirt is clean, but when he is back on the ground, some of Arnett's blood is on the collar of his white t-shirt.
The number for Gibbs' cellphone is listed as +1-202-345-6905.
When McGee is investigating the doctor who wrote the prescription for Phenelzine, the name on the pill bottle reads "FLEMING, NEIL M.D.", but when McGee types the name into the computer, it says "Dr. Neil Flemming" (with two M's).
When McGee is checking on Dr Flemming, the computer screen says, "AUTHORIZED PERSONNEL USE ONLY. VIOLATERS WILL BE PROSECUTED". The word "violators" is misspelled.
When Abby reads the fortune cookie, she says: "Welcome an invitation to change your financial future." What is actually printed on it is this: "Welcome an invitation that will change your financial future."
Starting from this episode, the 3 second teaser being shown at the beginning is NOT for the end scene before the intro (like in past episodes) but it's actually for the scene after the intro leading into the first commercial break.
Jardine not shaking hands and eventually bumping fists with Tony is an allusion to comedian Howie Mandel who has OCD and doesn't shake hands but bumps fists.
McGee's sports-styled watch makes another appearance.