"The North Pole" - Gibbs and the team assist Ziva (Cote de Pablo) with "the one thing" she said she would need to take care of before returning to her family, on NCIS, Tuesday, Dec. 17 (8:00-9:00 PM, ET/PT) on the CBS Television Network. Pictured: Sean Murray as NCIS Special Agent Timothy McGee, Emily Wickersham as NCIS Special Agent Eleanor "Ellie" Bishop, Wilmer Valderrama as NCIS Special Agent Nicholas "Nick" Torres, Mark Harmon as NCIS Special Agent Leroy Jethro Gibbs, Cote de Pablo as Ziva David. Photo: Greg Gayne/CBS ©2019 CBS Broadcasting, Inc. All Rights Reserved

"Out of the Darkness" - Ziva surprises Gibbs with a cryptic warning, prompting him to question why she remained underground for years while being presumed dead by family and friends, and what lead to her return, on the 17th season premiere of NCIS, Tuesday, Sept. 24 (8:00-9:00 PM, ET/PT) on the CBS Television Network. Pictured: Mark Harmon as Special Agent Leroy Jethro Gibbs, Cote de Pablo as Ziva David. Photo: Michael Yarish/CBS ©2019 CBS Broadcasting, Inc. All Rights Reserved