NCIS
Reef Madness
TV Flash files “Reef Madness” as the last listed hour of season 21 — NCIS (2003–present) on CBS, season 21, episode 10, aired 2024-05-06, 60 min.
From the desk
How this hour is filed
This leaf is S21E10: listed hour 467 of 508 in the NCIS guide, last listed hour of season 21. It aired 2024-05-06 (60 min). The listed hour before it is “Prime Cut” (S21E09). Next is “Empty Nest” (S22E01). Broadcast log — titles and dates, not a plot bible.
Catalog log
Broadcast listing — not a TV Flash recap.
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. Also, Vance offers Knight a unique opportunity.
Viewer FAQ
Where does Reef Madness sit in the NCIS guide?
S21E10 is listed hour 467 of 508 — last listed hour of season 21, season 21 episode 10.
When did NCIS S21E10 air?
Reef Madness aired 2024-05-06 and is listed at 60 minutes.
Do I need JAG before NCIS?
It launched via backdoor pilot episodes on JAG, but the mothership plays as its own squad-room ritual. Start with Gibbs's team, not a homework assignment.
In the series
Why this series still plays
Naval Criminal Investigative Service agents solve military-linked crimes with found-family banter and Gibbs's rules. Mark Harmon became a quiet ratings titan; the squad room is the serialized story. Sturdy CBS comfort that outlived fashion and multiplied into a carrier group of spinoffs.
Gibbs's rules, a squad room that is a second home, and a fandom that will fight you if you call it uncool — welcome to the quiet ratings titan the group chat pretends not to respect until someone dies in the bullpen. (Spoiler fence: mild. The team can bleed.) Donald P. Bellisario and Don McGill's CBS series premiered September 23, 2003, after a *JAG* backdoor pilot, and became a flagship with well over twenty seasons. Mark Harmon as Leroy Jethro Gibbs for many years; Michael Weatherly's DiNozzo, Pauley Perrette's…
Filed against
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David McCallum’s Illya Kuryakin made The Man from U.N.C.L.E. multinational cool — 1960s catalog gadget briefcases, Bond fever’s television wing, then NCIS stretching the blond into Gibbs-adjacent lab weather. TV Flash files him as the…
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- Sean Murray as Timothy McGee
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