Continuity mistake: Agent Todd is standing there coat open, hands in her pockets on Air Force One watching Gibbs walk away when the bad guy who is a reporter (Leonard) comes up to her and comments "Loosening your dress code Kate". Seconds later when she turns to indicate that he should return to the press section her coat is now buttoned up.
Continuity mistake: When Gibbs is trying to talk Lt. Arnett out of jumping off the ledge, Gibbs is relatively close to Arnett in the middle of the wall when Ducky and Abby watch the live news report, but in real time, Gibbs is over at the far left corner of the wall.
Continuity mistake: Fornell gives Gibbs a juice box when Gibbs stays with Fornell. Gibbs puts the straw into the box with the straw closest to him. Camera changes and now the straw is at the other end of the box. Since there is only 1 hole for a straw on a juice box it is clear the box has turned around.
Continuity mistake: When Fornell and Gibbs are talking in Gibbs' basement, Gibbs places a red storage box on some wood and there is a fair gap between the red box and the cardboard box that is next to it. When the camera changes, the boxes are almost touching with no-one touching it.
Continuity mistake: When Gibbs shows Cpl Yost the tape in the interview room, he is burning a match down to his fingers. Camera shows a closeup of the head of the match being extinguished, but it is just the head that is alight. It is not burnt to his fingers. It also goes from horizontal to vertical.
Continuity mistake: When talking to the warehouse manager, the manager has a clipboard with pink post it notes on. Watch closely and you will see the clipboard is constantly facing different directions as indicated by the pink post it notes. It some shots it's facing away from the manager, and in others it's facing the manager.
Revealing mistake: When Tony is telling Gibbs & Ducky that Abby got a hit on the dead sailor's fingerprints, Gibbs takes the file from Tony; the camera shows the file, which appears to be a legitimate profile sheet, but in the comments section, is the script that Tony just read aloud.
Continuity mistake: When Tony and Abby determine where the car holding Lt. Cmdr Wilkerson hit a pair of railroad tracks, Tony has a napkin tucked into his shirt like a bib. In the next shot, the napkin has disappeared from his shirt, and he is holding it in his hand instead.