[s17e10] The North Pole -

: 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..

: 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. [S17E10] The North Pole

The episode provides critical answers to long-standing fan questions while setting up future storylines: : The episode ends on a somber note