What to Expect from the NCIS: Sydney Season 3 Finale
NCIS: Sydney Season 3 Episode 19, “Hunter,” kicks off a two-episode season finale that will, hopefully, bring The Collective arc to an end.
The first part of the season finale sees the team work with Maia Mitchell’s Special Agent Ally Parks. It’s unclear whether DeShawn has told the team about when Parks approached him.
It looks more likely that everyone is working together because of The Collective’s involvement in the death of an FBI agent.

It can’t be a coincidence that, when all of that is going on, Mackey’s son, Trey, unexpectedly comes to visit. He has a present in his hand in one of the photos, which could mean anything. His timing, though, is worrisome, given The Collective’s intentions to endanger Mackey and those she loves.
Meanwhile, NCIS: Sydney Season 3 Episode 20, “Killer,” will pick up the baton and race the team into battle against The Collective.
These photos look intense, which is to be expected from a season finale with this level of pressure sitting on its proverbial shoulders. It even looks like “Killer” could pull NCIS: Sydney back into the past and reveal more about Mackey’s rescue mission in Afghanistan.
Hopefully, everyone makes it out of this two-part season finale as safe and sound as possible because NCIS: Sydney is coming back for Season 4.
Here’s everything you need to know about this episode, including the air date, cast, promo, and how to watch.
NCIS: Sydney Season 3 Episode 19 Details
- Title: “Hunter”
- Air Date: Tuesday, May 12, 2026
- Time: 9/8c
- Network: CBS
- Writer: Morgan O’Neill & James Cripps
- Director: Grant Brown
NCIS: Sydney Season 3 Episode 20 Details
- Title: “Killer”
- Air Date: Tuesday, May 12, 2026
- Time: 10/9c
- Network: CBS
- Writer: Morgan O’Neill & James Cripps
- Director: Grant Brown

How to Watch NCIS: Sydney Season 3 Episodes 19 & 20:
- Live: CBS, beginning at 9/8c
- Streaming: Available next day on Paramount+
NCIS: Sydney Season 3 Episode 19 Description
The team is pulled back into The Collective’s web when an FBI agent is found dead in Fiji, and Mackey faces an unplanned family reunion.
NCIS: Sydney Season 3 Episode 20 Description
The team faces the battle of their lives to stop The Collective and save those they hold dear.
Guest Stars & Returning Characters
- Cast: Olivia Swann 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 Constable Evie Cooper, Mavournee Hazel as AFP Forensic Scientist Bluebird “Blue” Gleeson, and William McInnes as AFP Forensic Pathologist Dr. Roy Penrose, Claude Jabbour as Travis “Trigger” Riggs
- Guest Stars: Maia Mitchell as Special Agent Ally Parks, Claire van Der Boom as Ambassador Harding, Ryan Panizza as Ryan Brady, and Noah Eid as Trey Mackey
Promo & Photos
Check out the photos from NCIS: Sydney Season 3 Episode 19:
Check out the photos from NCIS: Sydney Season 3 Episode 20:
What are your hopes for this season finale of NCIS: Sydney? Share your thoughts with us in the comments below!
NCIS: Sydney airs Tuesdays at 10/9c on CBS.
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