: The investigation begins when the NCIS team uncovers a group of ISIS sympathizers planning an attack on United States military targets.
: 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