TV NCIS - Season 21 Episode 10 : Reef Madness NCIS - Season 21 Episode 10 : Reef Madness 7.621/10 by 2421 users Parker and Knight discover three bodies on an old Navy ship that's about to be sunk and turned into an artificial reef, when they're suddenly locked inside by a mysterious figure. Details Casts Posters Images Title NCIS - Season 21 Episode 10 : Reef Madness Alternative Titles Морски детективи, Navy NCIS, NCIS or NCIS : Enquêtes spéciales, NCIS: Λος Άντζελες, NCIS - Tengerészeti Helyszínelők, NCIS (سرویس تحقیقات جنایی نیروی دریایی آمریکا), Specialioji jūrų policijos tarnyba (NCIS), Investigação Criminal, เอ็นซีไอเอส: หน่วยสืบสวนแห่งนาวิกโยธิน, Морська поліція, N.C.I.S., NCIS: Naval Criminal Investigative Service, Navy NCIS: Naval Criminal Investigative Service, Navy NCIS First Air Date 2003-09-23 Last Air Date 2025-12-09 Number of Episodes 499 Number of Seasons 23 Genres Crime, Drama, Action & Adventure, Networks CBS, Casts Sean Murray, Wilmer Valderrama, Katrina Law, Brian Dietzen, Rocky Carroll, Diona Reasonover, Gary Cole Plot Keywords , Timothy McGee Sean Murray Nick Torres Wilmer Valderrama Jessica Knight Katrina Law Jimmy Palmer Brian Dietzen Leon Vance Rocky Carroll Kasie Hines Diona Reasonover Alden Parker Gary Cole Episodes List NCIS Season 21 :Episode 1 Algún Día Algún Día 2024-02-12 From murder and espionage to terrorism and stolen submarines, a team of special agents investigates any crime that has any connection to Navy and... NCIS Season 21 :Episode 2 The Stories We Leave Behind The Stories We Leave Behind 2024-02-19 From murder and espionage to terrorism and stolen submarines, a team of special agents investigates any crime that has any connection to Navy and... NCIS Season 21 :Episode 3 Lifeline Lifeline 2024-02-26 From murder and espionage to terrorism and stolen submarines, a team of special agents investigates any crime that has any connection to Navy and... NCIS Season 21 :Episode 4 Left Unsaid Left Unsaid 2024-03-04 From murder and espionage to terrorism and stolen submarines, a team of special agents investigates any crime that has any connection to Navy and... NCIS Season 21 :Episode 5 The Plan The Plan 2024-03-25 From murder and espionage to terrorism and stolen submarines, a team of special agents investigates any crime that has any connection to Navy and... NCIS Season 21 :Episode 6 Strange Invaders Strange Invaders 2024-04-01 From murder and espionage to terrorism and stolen submarines, a team of special agents investigates any crime that has any connection to Navy and... NCIS Season 21 :Episode 7 A Thousand Yards A Thousand Yards 2024-04-15 From murder and espionage to terrorism and stolen submarines, a team of special agents investigates any crime that has any connection to Navy and... NCIS Season 21 :Episode 8 Heartless Heartless 2024-04-22 From murder and espionage to terrorism and stolen submarines, a team of special agents investigates any crime that has any connection to Navy and... NCIS Season 21 :Episode 9 Prime Cut Prime Cut 2024-04-29 From murder and espionage to terrorism and stolen submarines, a team of special agents investigates any crime that has any connection to Navy and... NCIS Season 21 :Episode 10 Reef Madness Reef Madness 2024-05-06 From murder and espionage to terrorism and stolen submarines, a team of special agents investigates any crime that has any connection to Navy and...