In Gibbs' final episode, we see the contract killer's story come to a close when Gibbs and McGee (Sean Murray) head to Alaska to uncover the mystery of who hired him and why. Although they succeed and Gibbs gets an offer to get his badge back, he realizes that, for the first time in a very long time, he's at peace. Unfamiliar with the feeling but knowing that he needs more of it, he decides to stay in Alaska.

Having Gibbs continue living in peace means that the team will still know he's out there, but they'll likely be hesitant to disturb him. Hopefully, that will allow us some future guest star appearances. But with the introduction of Gary Cole's Alden Park and Katrina Law's Jessica Knight, it looks like NCIS is making some huge changes. But NCIS has always changed over the years. Though this is a massive departure, we think the new NCIS team knows they have big shoes to fill.

NCIS airs Mondays at 9 p.m. EST on CBS.