Revealing mistake: When we see the first segment of marines in a firefight in Afghanistan, a couple of marines take cover next to a wall with a tyre on the ground. When they hit the ground/wall, The Wall moves. (00:31:50)
Revealing mistake: When Ziva is hugging her dead father, you can see him breathing. (00:36:00)
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