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16 Episodes
S18 E1 - Sturgeon Season
S18 E2 - Everything Starts Somewhere
S18 E3 - Blood And Treasure
S18 E4 - Sunburn
S18 E5 - Head of the Snake
S18 E6 - Episode 6
S18 E7 - The First Day
S18 E8 - True Believer
S18 E9 - Winter Chill
S18 E10 - Watchdog
S18 E11 - Gut Punch
S18 E12 - Sangre
S18 E13 - Misconduct
S18 E14 - Unseen Improvements
S18 E15 - Blown Away
S18 E16 - Episode 16
Streaming, rent, or buy NCIS – Season 18:
Currently you are able to watch "NCIS - Season 18" streaming on Amazon Prime Video, BINGE, Paramount Plus, Paramount+ Amazon Channel, Paramount Plus Apple TV Channel or buy it as download on Apple TV.
Where can I watch NCIS for free?
There are no options to watch NCIS for free online today in Australia. You can select 'Free' and hit the notification bell to be notified when season is available to watch for free on streaming services and TV.
Synopsis
The cases of the Naval Criminal Investigative Service's Washington, D.C. Major Case Response Team, led by Special Agent Leroy Jethro Gibbs.
