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NCIS: SYDNEY
Air Date: Tuesday, May 05, 2026
Time Slot: 10:00 PM-11:00 PM EST on CBS
Episode Title: (#SYD318) "Rough Diamond"
[NOTE: The following article is a press release issued by the aforementioned network and/or company. Any errors, typos, etc. are attributed to the original author. The release is reproduced solely for the dissemination of the enclosed information.]

THE DEATH OF A FORMER MARINE WANTED FOR MURDER LEADS THE TEAM TO A SINISTER PLOT INVOLVING LAB-GROWN DIAMONDS, ON "NCIS: SYDNEY," TUESDAY, MAY 5

"Rough Diamond" - The death of a former Marine wanted for murder leads the team to a sinister plot involving a disgraced journalist, one of Australia's richest men and lab-grown diamonds, on NCIS: SYDNEY, Tuesday, May 5 (10:00-11:00 PM, ET/PT) on the CBS Television Network, and streaming on Paramount+ (live and on demand for Paramount+ Premium plan subscribers, or on demand for Paramount+ Essential subscribers the day after the episode airs)*.

WRITTEN BY: Morgan O'Neill & James Cripps and Jessica Tuckwell

DIRECTED BY: Catherine Millar







NCIS: SYDNEY (CBS)
BROADCAST HISTORY:
11/14/23 - ???
STATUS:
currently airing (spring 2026)
TIME SLOT:
tuesdays from 10:00 PM-11:00 PM EST
CURRENT SEASON:
3 (20 episodes)
VISIT THE OFFICIAL WEB SITE
ADDITIONAL NOTES:
Season 4 ordered on 1/22/26
DESCRIPTION:
(from CBS's web site, October 2025) With rising international tensions in the Indo-Pacific, a brilliant and eclectic team of U.S. NCIS agents and the Australian Federal Police (AFP) are grafted into a multinational taskforce to keep naval crimes in check in the most contested patch of ocean on the planet. Our team of Americans and Aussies must quickly learn to trust each other, overcoming and harnessing their differences to solve each case.
PRINCIPAL CAST INFORMATION:
· Mavournee Hazel as Bluebird "Blue" Gleeson
· Olivia Swann as Michelle Mackey
· Sean Sagar as DeShawn Jackson
· Todd Lasance as Jim "JD" Dempsey
· Tuuli Narkle as Evie Cooper
· William McInnes as Roy Penrose
CREW INFORMATION:
· Morgan O'Neill as CRTR/EP
· Sara Richardson as EP
· Sue Seeary as EP
GENRE(S):
· based on a tv series
· drama
STUDIO INFORMATION:
· CBS Studios
· Endemol Shine Australia