If you’re based in the USA and you’re looking to stream NCIS for free (yes, 100% free), you’ve got an excellent and totally legal method you can use right now (September 2026). Here’s how to do it in a few simple steps:
At the moment, you can stream all 23 seasons of NCIS for free via Paramount+, a service you can use for free via Prime Video with a free trial (even if you don’t have Prime Video). It’s super easy to start and cancel this free trial, and as long as you remember to cancel the Paramount+ free trial after you’ve watched the episodes and before the 7 days are over, you won’t be charged anything at all. There’s no catch – this is just a great way to stream this series for free in crystal-clear quality without any annoying pop-up ads or sketchy websites!
- head to the page for NCIS on Prime Video
- start the 7 day free trial for Paramount+ (there’s a button to do that on the page as shown in the image above)
- watch all of the episodes within the 7 day period
- cancel the Paramount+ free trial before the 7 days are up (which is very easy to do within your Account settings)
- and that’s it – you just watched all of NCIS online in excellent quality without paying anything!
As long as you cancel the Paramount+ free trial before the 7 days are up, no payments will be taken, as explained on the Prime Video NCIS page here.
Don’t have Prime Video? No problem!
You can do this very easily if you already have Prime Video, but even if you don’t already have a Prime Video account, it’s no problem – you can still start the free trial for Paramount+ as long as you have an Amazon account:
As long as you don’t mind watching all of the episodes within the 7 day period, it’s the best way of watching the show for free right now, legally, in excellent quality, and with all the extras like subtitles. You can learn more and start the free trial on the NCIS page on Prime Video here.
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