8 'NCIS' Episodes to Rewatch Before Ziva's Season 17 Return (PHOTOS)
"No time for pleasantries," she told him. "You're in danger."
Though Gibbs had just spent the episode talking with his dead ex-wife, it's more likely Ziva's alive than she's another ghost (though we can't ignore that possibility). And her showing herself because Gibbs is in danger isn't a surprise.
After all, she told McGee (Sean Murray) in Season 8 that even if they hadn't spoken in years, if she found out he'd been killed, she'd "hunt [the person responsible] down and make him regret the day he was born." It might be a bit more of an extreme case than the danger Gibbs is currently in, but Ziva's response back then spoke volumes.
Ahead of her return in the Season 17 premiere, why not rewatch some of the key episodes over the years that include vital information or speak to Ziva's character and her bond with the team (and especially Gibbs)? Click through the gallery above to see TV Insider's picks.
NCIS, Season 17 Premiere, Tuesday, September 24, 8/7c, CBS