1 of 12 Hannah Ross for TV Guide
Sean Murray, alone at last, stands tall on the pool's diving board.
2 of 12 Hannah Ross for TV Guide
ncisbtsgallery2
Michael Weatherly was the set joker for the day, at one point walking around the pool in his shirt and boxers while his pants were getting pressed.
3 of 12 Hannah Ross for TV Guide
Mark Harmon insisted on fishing out the stylist's binder clips which fell into the pool.
4 of 12 Hannah Ross for TV Guide
Photographer Brian Bowen Smith shows Brian Dietzen the group shot.
5 of 12 Hannah Ross for TV Guide
ncisbtsgallery5
On location in Beverly Hills. Michael Weatherly took over as DJ and put on the "Girl from Impanema."
6 of 12 Hannah Ross for TV Guide
ncisbtsgallery6
The guys goof with the props, vintage TV Guide Magazines, cigars, film camera, martini glass and their shades.
7 of 12 Hannah Ross for TV Guide
Michael and Brian check out Jackie Gleason on the cover of a vintage TV Guide Magazine.
8 of 12 Hannah Ross for TV Guide
Michael Weatherly soaks it up, Dean Martin style.
9 of 12 Hannah Ross for TV Guide
David McCallum said his wife used to photograph Frank Sinatra.
10 of 12 Hannah Ross for TV Guide
Brian Dietzen strikes a Frank Sinatra pose.
11 of 12 Hannah Ross for TV Guide
Helen, the groomer, spritzes Rocky Carroll to give him a "glow."
12 of 12 Hannah Ross for TV Guide
The guys channel the Rat Pack.