CBS has released photos for NCIS Season 23 Episode 15, “Knick-Knack,” airing tonight, Tuesday, April 7, 2026 from 8:00–9:00 PM ET/PT. The episode teases a mysterious and high-stakes case as a shocking murder aboard a museum ship pulls the team into a cryptic investigation that quickly becomes far more complex.
When a dying Navy captain leaves behind a cryptic clue, the case transforms into a dangerous treasure hunt, forcing the team to decode what was worth killing—and dying—for. As they follow the trail, each piece of the puzzle brings them closer to uncovering the truth behind the captain’s final message.
Created by Donald P. Bellisario and Don McGill, NCIS remains one of television’s most popular dramas, following a team of special agents who investigate crimes connected to the Navy and Marine Corps. The series stars Sean Murray, Wilmer Valderrama, Katrina Law, Brian Dietzen, Diona Reasonover, Gary Cole, and Rocky Carroll.
Tune-In INFORMATION
NCIS Season 23 Episode 15 — “Knick-Knack” Airdate: Tuesday, April 7 Time: 8:00–9:00 PM ET/PT Network:CBS Streaming: Available live and on demand on Paramount+ (Premium), and next day for Essential subscribers Episode: 2315
Written By: Christopher J. Waild Directed By: Kevin Berlandi
The long-running CBS drama NCIS stars Gary Cole as Alden Parker, Sean Murray as Timothy McGee, Wilmer Valderrama as Nick Torres, and Katrina Law as Jessica Knight.
More NCIS Coverage
For more news, previews, and episode photos from NCIS, explore all of our coverage of the long-running CBS procedural. The series follows a team of special agents from the Naval Criminal Investigative Service as they investigate crimes connected to U.S. Navy and Marine Corps personnel.
In the previous episode, “Fleeting,” the team investigated a shocking case during Navy Week when a stolen squad car crash revealed a sailor stabbed in the trunk, all while they continued to grapple with the emotional fallout of recent events and the loss of Director Vance.
