The 200th episode of NCIS has been teased.
Titled 'Life Before His Eyes', the February 7 instalment will follow Jethro Gibbs (Mark Harmon) as various 'what if' scenarios are explored.
Showrunner Gary Glasberg told TV Line: "It very much is about a pivotal moment that Gibbs faces, and it literally looks back at key moments through nine years of NCIS where decisions had to be made and had people gone in one direction instead of another, how the world would have ended up."
One scenario will see what would happen if Kate (Sasha Alexander)'s desk was not taken by Ziva (Cote de Pablo).
Michael Weatherly, who plays Tony, commented: "For the first time, I didn't know what was going to happen. I literally had to concoct in my mind seven years of, 'What if there was no Ziva in Tony's life? How would he have been different?
"The character that [de Pablo] brought into the room was so different from her normal Ziva... And I came in with my own tweak."
Rocky Carroll, who portrays NCIS director Vance, explained: "There are some weird, dreamlike juxtapositions. There are a lot of surreal, 'How did we end up at the same time?' kind of moments, and the audience is going to love that."
Glasberg further teased that many "familiar" and "old" faces will return, and that Gibbs will conclude that "the decisions he has made were meant to be".
"As he looks around NCIS, he realises that this is where he should be," he added.
> NCIS exec reveals 200th episode plans
> More NCIS news