Watch NCIS: Los Angeles Season 3 Episode 21 online via TV Fanatic with over 6 options to watch the NCIS: Los Angeles S3E21 full episode. Affiliates with free and paid streaming include Amazon, iTunes, Vudu, YouTube Purchase, Google Play, and fuboTV.
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The joint NCIS: Los Angeles and Hawaii Five-0 task force travel from Hawaii to Los Angeles, when the lead suspect in the case moves to the mainland with a deadly virus in tow.