[s17e10] The North — Pole

: Mark Harmon, Cote de Pablo, Emily Wickersham, Wilmer Valderrama, and Jack Fisher as Phineas.

: The episode ends on a somber note as Gibbs is forced to kill Sarah (the real Sahar) to save Ziva. This leaves Gibbs with the heartbreaking task of telling Phineas that his mother—the woman Gibbs had come to trust—was a terrorist. Episode Details Air Date : December 17, 2019. Directed by : James Whitmore Jr.. [S17E10] The North Pole

The core conflict revolves around Ziva's attempt to neutralize the terrorist threat posed by . While the team previously believed Sahar had been eliminated, "The North Pole" reveals that the woman killed earlier in the season was merely a decoy. : Mark Harmon, Cote de Pablo, Emily Wickersham,

: In a shocking revelation, the real Sahar is revealed to be Sarah , Gibbs' neighbor and the mother of his young friend, Phineas. Episode Details Air Date : December 17, 2019

: Bishop (Emily Wickersham) is tested by Odette , Ziva's landlady and former CIA contact. After Bishop refuses to compromise her ethics for a mysterious drive, Odette reveals it was a test and offers her "specialized training," hinting at Bishop's future shift into a more covert role.