In the cafe scene, the untouched fruit salad 'shifts' back and forth.
In the office prior to Gibbs saying there is a case, there is a female background actor walking back and forward three times in a row and when finally they get a case she pauses and quickly heads towards the Middle East desks.
The mechanism which Abby determines was the cause of the car fire is known as "thermal runaway"; when one cell overloads and ignites, it causes its neighbor to overheat and ignite, and so on in a chain reaction. This condition is a unique side effect of the chemistry of lithium-ion batteries. However, the vehicle affected by thermal runaway in this episode is a Toyota Prius hybrid, which uses nickel metal-hydride batteries; this battery chemistry does not suffer from thermal runaway.
McGee asks Captain Bud Roberts about Lt. Colonel Mackenzie and Captain Rabb. NCIS had its backdoor pilot in the show JAG. (Gibbs' team was investigating if Rabb committed an act of murder in a case the NCIS team was working on)
However, the NCIS team back then consisted of Gibbs, DiNozzo, Sciuto, Mallard and a former FBI agent. McGee was not part of that team.
However, the NCIS team back then consisted of Gibbs, DiNozzo, Sciuto, Mallard and a former FBI agent. McGee was not part of that team.