
Visible crew/equipment: When Gibbs and Ziva are in the "safehouse" Ziva set up for Ari, a crew member and his boom microphone are seen on the left of the screen, right before Gibbs climbs the ladder to remove the hidden camera spying on them. (00:30:10)
Continuity mistake: Director Shepard has long nails with a French manicure, but when McGee gives her the envelope from Gibbs, in the closeup Jenny's nails are short and unpolished while she holds the old photo of herself. (00:43:10)
Visible crew/equipment: When asked if Ziva recognizes the biker in the safe house, a cameraman's shadow can be seen moving on the screen left. (00:27:00)
Continuity mistake: When Agent Sacks is overseeing the FBI search at Ziva's station he unfolds his arms. Camera changes to Tony and McGee walking away and his arms are crossed again. (00:20:15)
Continuity mistake: When agent DiNozzo and agent Sacks are arguing on the stairs, Sacks proceeds down a flight of stairs. Director Sheppard then calls both of them to the top. When the camera changes, Sacks is level with DiNozzo despite having descended a flight just seconds before. (00:13:30)
Continuity mistake: When the bike and Mini turn down a road just after the crash at the start we see the car the bike is approaching from behind has got a junction to its right. Camera changes to behind the bike and now it is buildings to the right of the same car. We know it's the same car as the bike is still approaching the car from behind. (00:00:50)

Revealing mistake: At the start when the two cars crash and Ziva's Mini goes out round the crash, colour coded markers (red for the Mini, Blue for the crashed car) are visible on the road. (00:00:40)
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