[s10e23] The Guardian -

: On the ship, they meet Captain Harmon Rabb Jr., who is serving as the ship’s Executive Officer (XO). This introduction bridges the NCIS and JAG universes, providing a nostalgic link for long-time fans. Key Character Arcs

Aired on May 12, 2019, "The Guardian" serves as the first half of a two-part season finale. The episode is notable for its crossover with the classic series , featuring the return of Captain Harmon "Harm" Rabb Jr. (David James Elliott). The plot follows the NCIS team as they uncover a terrorist plot aboard a military vessel, leading to a high-stakes mission in the Persian Gulf. Plot Overview [S10E23] The Guardian

: Special Agents Callen and Sam Hanna travel to the USS Allegiance in the Persian Gulf to track down the threat. : On the ship, they meet Captain Harmon Rabb Jr

: While the others are at sea, Kensi and Deeks remain in Los Angeles, working the case from the ground. The episode touches on their future and the impact of their high-risk careers on their personal lives. The episode is notable for its crossover with

: The duo operates in a high-pressure environment aboard the USS Allegiance, focusing on identifying "signals" and "expert" threats within the crew.

Detailed reviews and episode analysis can be found on fan platforms like wikiDeeks and news outlets such as the Express . Review: NCISLA “The Guardian” (S10E23) - wikiDeeks