Where to watch NCIS Season 18 in Australia
NCIS season 18 is streaming in Australia on Binge (subscription), Paramount Plus (subscription) and Disney+ (subscription, listed for the whole show). You can also buy it on Apple TV from $29.99.
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Stream (subscription)
Stream now on BingeBinge
Subscription
From $10/mth
Watch Now on Paramount PlusParamount Plus
Subscription
From $7.99/mth
Stream Now on Disney+Disney+
Subscription · Listed for the whole show
From $9.99/mth · Added 1 October 2026
Buy or rent
Stream now on Apple TVApple TV
Buy
Buy from $29.99 a season
Availability checked 16 November 2026.
What happens in “Rule 91”
While pursuing a dangerous arms dealer, the team is shocked when Bishop is implicated in an old NSA leak while Gibbs and Marcie realize the killer they've been tracking may be onto them.
Episode summary: TMDB.
Before you watch
- It is the season finale of season 18, so watch episodes 1 to 15 first.
- It runs about 45 minutes.
- Directed by Diana Valentine, written by David J. North and Brendan Fehily.
- TMDB users rate it 8.1 out of 10 (7 votes).
Cast and crew of this episode
- Director
- Diana Valentine
- Writers
- David J. NorthBrendan Fehily
- Guest stars
- Katrina Law as Jessica KnightDonzaleigh Abernathy as Ronda EllisRafael Petardi as Afrim MuratiElayn J. Taylor as Odette MalonePam Dawber as Marcie Warren
Credits: TMDB.
More from NCIS Season 18
Every episode of Season 18NCIS episode guide
Episode names, air dates, runtimes, stills and ratings: TMDB. Air dates are the first broadcast anywhere; where it streams is our daily Australian check.