Highlights from the Sixth Episode of Season 9 of NCIS

Doctor Donald "Ducky" Mallard (David McCallum, left) enjoys an intimate dinner with his new love interest Mary Courtney (Cheryl Ladd, right) on NCIS, Tuesday, Oct. 25 (8:00-9:00 PM ET/PT) on the CBS Television Network. Photo: Sonja Flemming/CBS

Special Agent Leroy Jethro Giibbs (Mark Harmon) and the NCIS team investigate the murder of Navy lieutenant who died of forced over-hydration on NCIS, Tuesday, Oct. 25 (8:00-9:00 PM ET/PT) on the CBS Television Network. Photo: Monty Brinton/CBS

Special Agent Tony DiNozzo (Michael Weatherly, left), Special Agent Leroy Jethro Giibbs (Mark Harmon, center) and Special Agent Ziva David (Cote de Pablo, right) investigate the murder of Navy lieutenant who died of forced over-hydration on NCIS. Photo: Monty Brinton

Doctor Donald "Ducky" Mallard (David McCallum) enjoys an intimate dinner with his new love interest Mary Courtney (Cheryl Ladd, pictured) on NCIS.Photo: Sonja Flemming/CBS

Doctor Donald "Ducky" Mallard (David McCallum, pictured) enjoys an intimate dinner with his new love interest Mary Courtney (Cheryl Ladd) on NCIS. Photo: Sonja Flemming/CBS. Winning caption by Hunter P.

Doctor Donald "Ducky" Mallard (David McCallum) enjoys an intimate dinner with his new love interest Mary Courtney (Cheryl Ladd, pictured) on NCIS.Photo: Sonja Flemming/CBS