Mike Smith
Here’s everything you need to know about NCIS Season 23 (2025), starring Gary Cole, Sean Murray, and Wilmer Valderrama.
NCIS Season 23 (2025) Synopsis
The hit CBS crime drama NCIS is back for its 23rd season, following Special Agent Alden Parker (Gary Cole) and his skilled team as they take on high-stakes investigations involving the U.S. Navy and Marine Corps.
After the shocking events of Season 22, Parker is left reeling from his father’s murder and becomes consumed by a personal mission to hunt down mob boss Carla Marino, forcing him to confront the line between justice and revenge. Meanwhile, the NCIS team faces a new wave of challenging cases—from blackmail and espionage to long-buried cold cases that resurface with emotional fallout.
Season 23 also explores deeper character growth: McGee steps up as a mentor for the next generation of agents, Torres struggles to overcome personal trauma, and Knight wrestles with the opportunity to join NCIS Elite, a decision that could change her career forever.
When Does NCIS Season 23 Premiere in Australia?
NCIS Season 23 premiered in Australia on Wednesday, October 15, 2025 on Paramount+.
Where to Watch NCIS Season 23 in Australia
You can watch NCIS Season 23 exclusively on Paramount+ Australia, available through the Paramount+ app, as well as the Paramount+ channel on Apple TV and Prime Video. All episodes will stream in HD and 4K, with the option to download for offline viewing.
NCIS Season 23 Episodes
Here are the episodes:
- Episode 1 – Prodigal Son (Part 1) – Premiere date: October 14, 2025
Parker becomes consumed by grief after his father’s death and launches a risky pursuit of the suspected killer, putting both himself and the team in jeopardy. - Episode 2 – Prodigal Son (Part 2) – Premiere date: October 21, 2025
As Parker continues his relentless hunt for revenge, his actions create tension within the team while his sister faces a decision that could change their family forever. - Episode 3 – The Sound and the Fury – Premiere date: October 28, 2025
A suspicious death linked to blackmail forces the team into an uneasy collaboration with another agency, leading to unexpected emotional consequences for Torres. - Episode 4 – Gone Girls – Premiere date: November 4, 2025
The investigation into a missing woman uncovers hidden motives and secrets when evidence suggests a Marine may be responsible for her disappearance. - Episode 5 – Now and Then – Premiere date: November 11, 2025
A decades-old naval case resurfaces, pushing the team to uncover long-buried truths while tracking down a suspect connected to past events. - Episode 6 – Page-Turner – Premiere date: November 18, 2025
When McGee is abducted during a book event, the team must determine whether the culprit is an obsessed fan or someone tied to classified information theft. - Episode 7 – God Only Knows – Premiere date: December 2, 2025
A teenager’s kidnapping leads to a former Navy SEAL with a troubled past, while new revelations about Parker’s family history begin to emerge. - Episode 8 – Stolen Moments – Premiere date: December 9, 2025
A shooting near a high-security government residence sparks a complex investigation, introducing advanced technology that could change how cases are solved. - Episode 9 – Heaven and Nature – Premiere date: December 16, 2025
During the holiday season, a stolen supply truck triggers a race against time as personal truths about Parker’s past finally come to light. - Episode 10 – Her – Premiere date: March 3, 2026
Knight’s first major assignment places her on a mission to capture a former colleague, leading to emotional reunions and conflicting loyalties. - Episode 11 – Army of One – Premiere date: March 10, 2026
A case involving military connections forces the team to confront isolation, trust issues, and the consequences of standing alone. - Episode 12 – In Too Deep – Premiere date: March 17, 2026
An undercover operation becomes increasingly dangerous when unexpected alliances threaten to expose the team’s plans. - Episode 13 – Premiere date: March 24, 2026
The season culminates in a high-risk confrontation that tests relationships, leadership, and the team’s ability to overcome personal and professional challenges.
NCIS Season 23 Cast
- Gary Cole as Supervisory Special Agent Alden Parker
- Sean Murray as NCIS Senior Special Agent Timothy McGee
- Wilmer Valderrama as Special Agent Nick Torres
- Katrina Law as Special Agent Jessica Knight
- Brian Dietzen as Chief Medical Examiner Dr. Jimmy Palmer
- Diona Reasonover as Chief Forensic Scientist Kasie Hines
- Rocky Carroll as NCIS Director Leon Vance
- Nancy Travis as Vice Admiral Harriet Parker
Recurring and Guest Cast
- Joe Spano as Tobias Fornell
- Teri Polo as Vivian Kolchak
- Carolyn Hennesy as Carla Marino
- Austin Stowell as Special Agent Sawyer
Is NCIS Suitable for All Ages?
NCIS is rated TV-14, meaning it’s suitable for viewers aged 14 and above. The series contains moderate violence, occasional language, and crime-related themes, so parental discretion is advised for younger viewers.
FAQs
1. Will Mark Harmon return in NCIS Season 23?
Mark Harmon’s Leroy Jethro Gibbs remains retired from the NCIS team, but producers have hinted at the possibility of a cameo later in the season.
2. Is there a crossover with NCIS: Origins or NCIS: Sydney?
Yes, Episode 5 “Unburied (2)” connects directly to NCIS: Origins Season 2, expanding the shared NCIS universe storyline.
NCIS Season 23 Trailer
Here’s the trailer for the new season:
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