Although the series’ production value has improved over the years, earlier seasons struggled to keep up with the polish of other television shows at the time.
Thanks to the show’s impressive output of over 20 episodes in each instalment, episodes are produced incredibly quickly and often miss some key details.
Back in season three, a pivotal interrogation sequence was rendered surprisingly distracting when fans noticed a prop performing an odd disappearing act.
In episode 20, Untouchable, Gibbs and the team investigate when a Pentagon cryptographer is found dead under mysterious circumstances.
source: express.co.uk