Bury Your Dead

The music in the background of the voicemail on Tony's cover cellphone is the 20th Century Fox music.

When the team arrives at the marina in the final scene, Gibbs draws his pistol just before he enters the gate. As he boards the vessel, he draws it again. This is not incorrect, nor a continuity error. What is cut out is Gibbs following a standard weapons-handling procedure of holstering his weapon before climbing the gangway on to the yacht. Moored vessels can easily move on the water and the gangway can shift dramatically making it unsafe to climb while holding a weapon. His approach to the deck level would have been covered by Tony from the marina path. You then see Ziva holster her weapon as she moves onto the gangway, ensuring that she too is safe and no member of the team is moving, unarmed, without support from someone else.

References NCIS: SWAK (2005)