Meredith's dishonesty is revealed, leading to unexpected consequences for her and others; the new chief resident is chosen.
While pursuing a dangerous arms dealer, the team is shocked when Bishop is implicated in an old NSA leak.
Gibbs and the team assist Ziva with "the one thing" she said she would need to take care of before returning to her family.
As the holidays descend upon the Hall of Justice, Lola begins her first jury trial in the Covid-19 era. Also, Mark digs deeper into his case against a police officer.
As the Cohens prepare for Kirsten's 40th birthday party, Kirsten gets some news that will change her life forever. Meanwhile, Julie is having a secret love affair-and Kaitlin is doing everything she can to stop it.