The CBS Original hit NCIS: Sydney is returning for Season 4, and slated to premiere at midseason during the 2026-2027 TV season. Production kicked off in late April in the show’s namesake locale, Sydney, Australia, and the surrounding harbor locations. Seasons 1-3 are streaming now on Paramount.
Your favorite team will once again tackle high-stakes naval crimes in their signature style, taking on criminal mastermind mermaids, deadly government secrets, and long-simmering romantic tensions in Season 4. Keep reading to learn everything you need to know about NCIS: Sydney Season 4: early details, returning cast members, where to watch, and more.
What is Season 4 about?
NCIS: Sydney Season 4 will continue to follow the joint U.S. NCIS agents and the Australian Federal Police (NCIS-AFP) task force as they keep naval crimes in check in Sydney, Australia. The team will tackle gold heists, illicit trades, high-seas adventures, and more.
Romantic tensions boiled to the surface in the shocking Season 3 finale, which saw the team take on a worldwide drug cartel. Will professional lines begin to blur as feelings bubble up in a new season? Tune in to find out.
Who is returning?
Here is a list of the cast returning for NCIS: Sydney Season 4:
- Olivia Swan as NCIS Special Agent Michelle Mackey
- Todd Lasance as AFP Sergeant Jim “JD” Dempsey
- Sean Sagar as NCIS Special Agent DeShawn Jackson
- Tuuli Narkle as AFP Liaison Office Evie Cooper
- Mavournee Hazel as Bluebird “Blue” Gleeson
- William McInnes as AFP Forensic Pathologist Dr. Roy “Rosie” Penrose
What makes NCIS: Sydney such a great show is the ensemble’s chemistry, and, thankfully, the core cast has remained intact since Season 1. One more character who joins the team in Season 3 in a recurring role: Travis “Trigger” Riggs, an explosive expert played by Claude Jabbour.
When and where to watch
You can watch NCIS: Sydney on CBS and Paramount+. All episodes from the show’s first three seasons are available to binge-watch now on Paramount+ with a subscription to any plan: either Paramount+ Essential, or Paramount+ Premium.
When the new season returns at midseason during the 2026-2027 TV season, new episodes will air on CBS, and stream on Paramount+ as they air on CBS with a subscription to the Paramount+ Premium plan. New episodes can be streamed on demand, on the day after they air on CBS, on Paramount+ with a subscription to any plan.
Get the how-to-watch info below for Season 4:
NCIS: Sydney Season 4
- Premiere date: TBA (2026-2027 midseason)
- Channel: CBS
- Streaming: Paramount+*
*New episodes can be streamed live on Paramount+ as they air on CBS via the Paramount+ Premium plan, or they can be streamed on the day after they air via either Paramount+ plan.
Behind the scenes in Sydney
NCIS: Sydney is filmed in Sydney, Australia. The bulk of the show takes place across Sydney Harbour and the surrounding areas. Season 4 will continue to highlight the beautiful places and faces fans have come to love, showcasing Australian talent and crew, global storytelling, and breathtaking views.
“We are incredibly excited that we get to keep making this show in our own backyard, sharing Australian craft and talent with audiences around the world. I am immensely proud of the extraordinary team whose passion and creativity breathe life into these characters season after season. The opportunity to create jobs, champion local crews, and keep telling bold, ambitious Australian stories on this scale is important,” said Endemol Shine Australia’s Director of Scripted Content, Sara Richardson.
Why fans are excited
The NCIS franchise is one of the world’s most successful TV franchises, reaching over 200+ markets, and continues to impress with each additional title. The first international expansion of the franchise, NCIS: Sydney, is a hit overseas and here at home. It brings the same blend of procedural storytelling and interpersonal drama that NCIS fans love, and a new season welcomes back the elite joint task force for a slew of grand new adventures.
NCIS: Sydney belongs to an ever-expanding universe of shows that includes NCIS, NCIS: New Orleans, NCIS: Origins, NCIS: Tony & Ziva.
Right now, you can stream five NCIS shows on Paramount+:
- NCIS
- NCIS: New Orleans
- NCIS: Sydney
- NCIS: Origins
- NCIS: Tony & Ziva
And come Fall 2026, fans will welcome the latest addition to the franchise, NCIS: New York, starring LL COOL J (reprising the Sam Hanna character he’s played on NCIS, NCIS: Los Angeles, and NCIS: Hawai’i) and Scott Caan. Like NCIS, NCIS: Origins, and NCIS: Sydney, NCIS: New York will air on CBS, and stream on Paramount+.
NCIS: Sydney on Paramount+
Paramount+ is the streaming home of the hit CBS show NCIS: Sydney. So catch up on every episode from Seasons 1-3, and be sure to return when Season 4 premieres. The eclectic team of NCIS-AFP agents will draw you in with dangerous and thrilling new cases and keep you coming back for more as their own personal pasts come to light.
NCIS: Sydney
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