Gibbs' ordeal will have both physical and psychological ramifications, according to show boss Gary Glasberg. The changes to his personality will put Gibbs at odds with his team, in particular right-hand man Tony (Michael Weatherly).
"Gibbs is in a difficult place, a physically difficult place. ... We're still functioning as a team, but there's absolutely some conflict," Glasberg tells TVGuide.com. "There's issues that have to get worked out between team members, very specifically between Tony and Gibbs. ... It's tricky, and they're sensitive to what he's going through, and they're trying to be there for him as coworker and as friend and as family member. They're being ultra-supportive of him."
With Gibbs out of commission, it's up to Tony to close out the case of The Calling, the terrorist organization Gibbs and the team were tracking when he got shot.
"It dramatically gets resolved" in the season-opener, Glasberg promises. "Tony really rises to the occasion." Whether Gibbs will have his back when he does remains to be seen.
(Full disclosure: TVGuide.com is owned by CBS.)