NCIS Season 3 Episode 8

DiNozzo and Ziva play a hot married couple of Canadian assassins Jean-Paul and Sophie Ranier known to have assumed Marines identities and checked into strategically situated hotel suite, presumably to make a hit at the Washington USMC 'birthday party' attended by military and political dignitaries, including the NCIS director. Ducky and Abby must try to supply them, via 'waiter' Proby, data how to do so. They are observed by another couple, but who and why? Jethro and Jenny worry about the assault plan itself and the rivalry for jurisdiction.