Watch NCIS: Los Angeles Online: Season 12 Episode 3

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Did Nell's tip cause a world of problems for Sam?

On NCIS: Los Angeles Season 12 Episode 3, a surprising mission about an informant who blew the whistle on a military secret resulted in a devastating turn of events. 

Difficult Decision - NCIS: Los Angeles Season 12 Episode 3

Meanwhile, Kensi and Deeks debated whether or not to buy their first house. 

But what held them back from pulling the trigger on the big thing?

Use the video above to watch NCIS: Los Angeles online right here via TV Fanatic. 

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NCIS: Los Angeles Season 12 Episode 3 Quotes

Callen: You sure you're all right?
Sam: Nothing a couple of beers and a good night's sleep won't cure.

I think it's actually required by law that you sing along to Journey.

Deeks [to Deeks]