
Continuity mistake: Vance checks on Langer's pulse and uses 4 fingers. Camera changes and he is using 2. (00:37:20)
Revealing mistake: We see a close up of the money in the truck and the $100 note has got "This bill is for motion picture use only" printed on it. (00:05:40)

Revealing mistake: Agent Lang takes a picture of a debit card inside the first victims car which is a clearly prop. The name is "Jane Doe", and the card number is 1234-5678-9101-1112. (00:05:40)

Continuity mistake: When Vance shows Gibbs the access card belonging to their dead petty officer, the position of his hand on the card changes between shots. (00:38:35)
Answer: I hadn't seen the backdoor pilots yet but while it wasn't explicitly stated, at least onscreen, I heard somewhere Vivian got either fired from NCIS due to jeopardizing a case, got resigned from the agency, or transferred to the FBI.
Raykvega423