Get ready for the Season 21 finale of NCIS! Special Agent Jessica Knight and Dr. Jimmy Palmer are facing tough choices. In “Reef Madness,” they discover bodies on a Navy ship-turned-reef, leading to a mysterious lockdown. Director Vance offers Knight a game-changing opportunity, pushing her to a professional and personal crossroads. Jimmy grapples with the possible end of their romantic connection. Will Knight find clarity before summer hiatus? Brace yourself for hard decisions and closure in this gripping episode!