This was the first episode to begin each act with a freeze frame showing an image from the end of the act. These are known as 'Foofs' or 'Phoofs', and are often written in the scripts as such.
Near the beginning, Gibbs announces that there's a dead body in Norfolk and for someone to call Ducky. The response is that he's flying to London in four hours. Gibbs says he has time. Except, it's at least a three-hour drive from the Washington Navy Yard to Norfolk.